Please tell me how to resolve this exception.
org.camunda.bpm.engine.OptimisticLockingException: ENGINE-03005 Execution of ‘DELETE MessageEntity[60ea55da-4485-11e9-9801-3c52826950b1]’ failed. Entity was updated by another transaction concurrently.
at org.camunda.bpm.engine.impl.db.EnginePersistenceLogger.concurrentUpdateDbEntityException(EnginePersistenceLogger.java:134) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.db.entitymanager.DbEntityManager.handleOptimisticLockingException(DbEntityManager.java:498) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.db.entitymanager.DbEntityManager.checkFlushResults(DbEntityManager.java:450) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.db.entitymanager.DbEntityManager.flushDbOperations(DbEntityManager.java:366) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.db.entitymanager.DbEntityManager.flushDbOperationManager(DbEntityManager.java:324) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.db.entitymanager.DbEntityManager.flush(DbEntityManager.java:296) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.interceptor.CommandContext.flushSessions(CommandContext.java:207) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.interceptor.CommandContext.close(CommandContext.java:136) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:115) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:45) ~[camunda-engine-spring-7.10.0.jar:7.10.0]
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140) ~[spring-tx-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.camunda.bpm.engine.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:43) ~[camunda-engine-spring-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:69) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:32) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobHelper.executeJob(ExecuteJobHelper.java:50) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobHelper.executeJob(ExecuteJobHelper.java:43) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:91) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:60) ~[camunda-engine-7.10.0.jar:7.10.0]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]
2019-03-12 14:22:33.677 WARN 11728 — [aTaskExecutor-2] org.camunda.bpm.engine.jobexecutor : ENGINE-14006 Exception while executing job 60ea55da-4485-11e9-9801-3c52826950b1:
org.camunda.bpm.engine.OptimisticLockingException: ENGINE-03005 Execution of ‘DELETE MessageEntity[60ea55da-4485-11e9-9801-3c52826950b1]’ failed. Entity was updated by another transaction concurrently.
at org.camunda.bpm.engine.impl.db.EnginePersistenceLogger.concurrentUpdateDbEntityException(EnginePersistenceLogger.java:134) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.db.entitymanager.DbEntityManager.handleOptimisticLockingException(DbEntityManager.java:498) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.db.entitymanager.DbEntityManager.checkFlushResults(DbEntityManager.java:450) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.db.entitymanager.DbEntityManager.flushDbOperations(DbEntityManager.java:366) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.db.entitymanager.DbEntityManager.flushDbOperationManager(DbEntityManager.java:324) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.db.entitymanager.DbEntityManager.flush(DbEntityManager.java:296) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.interceptor.CommandContext.flushSessions(CommandContext.java:207) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.interceptor.CommandContext.close(CommandContext.java:136) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:115) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:45) ~[camunda-engine-spring-7.10.0.jar:7.10.0]
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140) ~[spring-tx-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.camunda.bpm.engine.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:43) ~[camunda-engine-spring-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:69) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:32) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobHelper.executeJob(ExecuteJobHelper.java:50) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobHelper.executeJob(ExecuteJobHelper.java:43) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.executeJob(ExecuteJobsRunnable.java:91) ~[camunda-engine-7.10.0.jar:7.10.0]
at org.camunda.bpm.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:60) ~[camunda-engine-7.10.0.jar:7.10.0]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]