Terminating process instance fails

HI,
When trying to terminate a process instance, it fails with below error. I receive the same error on multiple instances of the same processDefinition. Anyone can help me in getting this fixed? I believe the processes that are having this issue are also causing CPU/MEM usage to go sky-high.

Tnx,
Wim

2019-03-14 13:41:19.522 ERROR 16375 --- [io-8009-exec-11] o.f.c.e.i.i.CommandContext               : Error while closing command context

org.apache.ibatis.exceptions.PersistenceException:
### Error updating database.  Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Cannot delete or update a parent row: a foreign key constraint fails (`flowable`.`ACT_RU_EVENT_SUBSCR`, CONSTRAINT `ACT_FK_EVENT_EXEC` FOREIGN KEY (`EXECUTION_ID_`) REFERENCES `ACT_RU_EXECUTION` (`ID_`))
### The error may involve org.flowable.engine.impl.persistence.entity.ExecutionEntityImpl.deleteExecution-Inline
### The error occurred while setting parameters
### SQL: delete from ACT_RU_EXECUTION where ID_ = ? and REV_ = ?
### Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Cannot delete or update a parent row: a foreign key constraint fails (`flowable`.`ACT_RU_EVENT_SUBSCR`, CONSTRAINT `ACT_FK_EVENT_EXEC` FOREIGN KEY (`EXECUTION_ID_`) REFERENCES `ACT_RU_EXECUTION` (`ID_`))
        at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30) ~[mybatis-3.4.6.jar:3.4.6]
        at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:200) ~[mybatis-3.4.6.jar:3.4.6]
        at org.apache.ibatis.session.defaults.DefaultSqlSession.delete(DefaultSqlSession.java:213) ~[mybatis-3.4.6.jar:3.4.6]
        at org.flowable.common.engine.impl.db.DbSqlSession.flushDeleteEntities(DbSqlSession.java:569) ~[flowable-engine-common-6.4.0.jar:6.4.0]
        at org.flowable.common.engine.impl.db.DbSqlSession.flushDeletes(DbSqlSession.java:526) ~[flowable-engine-common-6.4.0.jar:6.4.0]
        at org.flowable.common.engine.impl.db.DbSqlSession.flush(DbSqlSession.java:293) ~[flowable-engine-common-6.4.0.jar:6.4.0]
        at org.flowable.common.engine.impl.interceptor.CommandContext.flushSessions(CommandContext.java:191) [flowable-engine-common-6.4.0.jar:6.4.0]
        at org.flowable.common.engine.impl.interceptor.CommandContext.close(CommandContext.java:61) [flowable-engine-common-6.4.0.jar:6.4.0]
        at org.flowable.common.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:80) [flowable-engine-common-6.4.0.jar:6.4.0]
        at org.flowable.common.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:49) [flowable-spring-common-6.4.0.jar:6.4.0]
        at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140) [spring-tx-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.flowable.common.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:46) [flowable-spring-common-6.4.0.jar:6.4.0]
        at org.flowable.common.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30) [flowable-engine-common-6.4.0.jar:6.4.0]
        at org.flowable.common.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:56) [flowable-engine-common-6.4.0.jar:6.4.0]
        at org.flowable.common.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:51) [flowable-engine-common-6.4.0.jar:6.4.0]
        at org.flowable.engine.impl.RuntimeServiceImpl.deleteProcessInstance(RuntimeServiceImpl.java:172) [flowable-engine-6.4.0.jar:6.4.0]
        at org.flowable.rest.service.api.runtime.process.ProcessInstanceResource.deleteProcessInstance(ProcessInstanceResource.java:76) [flowable-rest-6.4.0.jar:6.4.0]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_181]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_181]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_181]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_181]
        at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209) [spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) [spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) [spring-webmvc-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:891) [spring-webmvc-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797) [spring-webmvc-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) [spring-webmvc-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991) [spring-webmvc-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925) [spring-webmvc-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974) [spring-webmvc-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.springframework.web.servlet.FrameworkServlet.doDelete(FrameworkServlet.java:899) [spring-webmvc-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:666) [servlet-api.jar:?]
        at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851) [spring-webmvc-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) [servlet-api.jar:?]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [catalina.jar:9.0.8]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.8]
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) [tomcat-websocket.jar:9.0.8]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.8]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.8]
        at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90) [spring-boot-actuator-2.0.5.RELEASE.jar:2.0.5.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.8]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.8]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilterInternal(BasicAuthenticationFilter.java:215) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:66) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178) [spring-security-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]
        at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357) [spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270) [spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.8]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.8]
        at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) [spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.8]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.8]
        at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) [spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.8]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.8]
        at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) [spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.8]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.8]
        at org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:130) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
        at org.springframework.boot.web.servlet.support.ErrorPageFilter.access$000(ErrorPageFilter.java:66) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
        at org.springframework.boot.web.servlet.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:105) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:123) [spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.8]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.8]
        at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:155) [spring-boot-actuator-2.0.5.RELEASE.jar:2.0.5.RELEASE]
        at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:123) [spring-boot-actuator-2.0.5.RELEASE.jar:2.0.5.RELEASE]
        at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:108) [spring-boot-actuator-2.0.5.RELEASE.jar:2.0.5.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.8]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.8]
        at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) [spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.9.RELEASE.jar:5.0.9.RELEASE]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.8]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.8]
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) [catalina.jar:9.0.8]
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [catalina.jar:9.0.8]
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:494) [catalina.jar:9.0.8]
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [catalina.jar:9.0.8]
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [catalina.jar:9.0.8]
        at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:651) [catalina.jar:9.0.8]
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [catalina.jar:9.0.8]
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [catalina.jar:9.0.8]
        at org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:394) [tomcat-coyote.jar:9.0.8]
        at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-coyote.jar:9.0.8]
        at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:754) [tomcat-coyote.jar:9.0.8]
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1385) [tomcat-coyote.jar:9.0.8]
        at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-coyote.jar:9.0.8]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_181]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_181]
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-util.jar:9.0.8]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_181]
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Cannot delete or update a parent row: a foreign key constraint fails (`flowable`.`ACT_RU_EVENT_SUBSCR`, CONSTRAINT `ACT_FK_EVENT_EXEC` FOREIGN KEY (`EXECUTION_ID_`) REFERENCES `ACT_RU_EXECUTION` (`ID_`))
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_181]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_181]
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_181]
        at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[?:1.8.0_181]
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) ~[mysql-connector-java-5.1.42-bin.jar:5.1.42]
        at com.mysql.jdbc.Util.getInstance(Util.java:408) ~[mysql-connector-java-5.1.42-bin.jar:5.1.42]
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:935) ~[mysql-connector-java-5.1.42-bin.jar:5.1.42]
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3973) ~[mysql-connector-java-5.1.42-bin.jar:5.1.42]
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3909) ~[mysql-connector-java-5.1.42-bin.jar:5.1.42]
        at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2527) ~[mysql-connector-java-5.1.42-bin.jar:5.1.42]
        at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2680) ~[mysql-connector-java-5.1.42-bin.jar:5.1.42]
        at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2490) ~[mysql-connector-java-5.1.42-bin.jar:5.1.42]
        at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1858) ~[mysql-connector-java-5.1.42-bin.jar:5.1.42]
        at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1197) ~[mysql-connector-java-5.1.42-bin.jar:5.1.42]
        at com.zaxxer.hikari.pool.ProxyPreparedStatement.execute(ProxyPreparedStatement.java:44) ~[HikariCP-2.7.9.jar:?]
        at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.execute(HikariProxyPreparedStatement.java) ~[HikariCP-2.7.9.jar:?]
        at org.apache.ibatis.executor.statement.PreparedStatementHandler.update(PreparedStatementHandler.java:46) ~[mybatis-3.4.6.jar:3.4.6]
        at org.apache.ibatis.executor.statement.RoutingStatementHandler.update(RoutingStatementHandler.java:74) ~[mybatis-3.4.6.jar:3.4.6]
        at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:50) ~[mybatis-3.4.6.jar:3.4.6]
        at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:117) ~[mybatis-3.4.6.jar:3.4.6]
        at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:76) ~[mybatis-3.4.6.jar:3.4.6]
        at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:198) ~[mybatis-3.4.6.jar:3.4.6]
        ... 120 more

2019-03-14 13:41:19.531 ERROR 16375 --- [io-8009-exec-11] o.f.c.r.e.BaseExceptionHandlerAdvice     : Unhandled exception

This seems to have worked on the development server:

DELETE FROM ACT_RU_SUSPENDED_JOB where PROCESS_INSTANCE_ID_ = "10c167ba-3363-11e9-bf2d-0050569058ff";
DELETE FROM ACT_RU_TIMER_JOB where PROCESS_INSTANCE_ID_ = "10c167ba-3363-11e9-bf2d-0050569058ff";
DELETE FROM ACT_RU_DEADLETTER_JOB where PROCESS_INSTANCE_ID_ = "10c167ba-3363-11e9-bf2d-0050569058ff";
DELETE FROM ACT_RU_TASK where PROC_INST_ID_ = "10c167ba-3363-11e9-bf2d-0050569058ff";
DELETE FROM ACT_RU_VARIABLE where PROC_INST_ID_ = "10c167ba-3363-11e9-bf2d-0050569058ff";
DELETE FROM ACT_RU_IDENTITYLINK where PROC_INST_ID_ = "10c167ba-3363-11e9-bf2d-0050569058ff";
DELETE FROM ACT_RU_EXECUTION where PROC_INST_ID_ = "10c167ba-3363-11e9-bf2d-0050569058ff";
DELETE FROM ACT_RU_EVENT_SUBSCR where PROC_INST_ID_ = "10c167ba-3363-11e9-bf2d-0050569058ff";
DELETE FROM ACT_FO_FORM_INSTANCE where PROC_INST_ID_ = "10c167ba-3363-11e9-bf2d-0050569058ff";
DELETE FROM ACT_HI_ACTINST where PROC_INST_ID_ = "10c167ba-3363-11e9-bf2d-0050569058ff";
DELETE FROM ACT_HI_ATTACHMENT  where PROC_INST_ID_ = "10c167ba-3363-11e9-bf2d-0050569058ff";
DELETE FROM ACT_HI_COMMENT where PROC_INST_ID_ = "10c167ba-3363-11e9-bf2d-0050569058ff";
DELETE FROM ACT_HI_DETAIL where PROC_INST_ID_ = "10c167ba-3363-11e9-bf2d-0050569058ff";
DELETE FROM ACT_HI_VARINST where PROC_INST_ID_ = "10c167ba-3363-11e9-bf2d-0050569058ff";
DELETE FROM ACT_HI_TASKINST where PROC_INST_ID_ = "10c167ba-3363-11e9-bf2d-0050569058ff";
DELETE FROM ACT_HI_IDENTITYLINK where PROC_INST_ID_ = "10c167ba-3363-11e9-bf2d-0050569058ff";
DELETE FROM ACT_HI_PROCINST where PROC_INST_ID_ = "10c167ba-3363-11e9-bf2d-0050569058ff";