Hi have an intermittent issues when starting workflows (either automatically from entry creation or from selecting Action > Start Workflow)

The webpage shows "an error occured" and in appserver.log the following is seen

2016-02-16 12:24:21,394 WARN [http-bio-443-exec-9] [org.hibernate.util.JDBCExceptionReporter] - SQL Error: 1062, SQLState: 23000
2016-02-16 12:24:21,395 ERROR [http-bio-443-exec-9] [org.hibernate.util.JDBCExceptionReporter] - Duplicate entry '2969' for key 'PRIMARY'
2016-02-16 12:24:21,395 ERROR [http-bio-443-exec-9] [org.jbpm.db.SchedulerSession] - org.hibernate.exception.ConstraintViolationExcepti on: could not insert: [org.kablink.teaming.domain.WorkflowState]
2016-02-16 12:24:21,395 ERROR [http-bio-443-exec-9] [org.jbpm.graph.def.GraphElement] - action threw exception: couldn't delete timer 'onDataValue' on 'Token(/)' from the database
org.jbpm.JbpmException: couldn't delete timer 'onDataValue' on 'Token(/)' from the database
at org.jbpm.db.SchedulerSession.cancelTimersByName(Sc hedulerSession.java:156)

the duplicate number changes, but I don;t know what it relates to. If I wait a few minutes I can create the entry and the flow starts and sometimes make a few entries before the issue re-occurs.

This happens on any workflow in the system not just one.

Any one seen this ?