SAP Message WL497 - Workflow & no.& step &: Error & found in workflow definition

Diagnosis
An error was discovered when the workflow was executed in thedefinition of a join node (parallel section, ParForEach).

System Response
INCLUDE NA_WF_ERROR OBJECT DOKU ID TX

Procedure
Correct the error as described below and then continue the processingof the workflow.
If error number 1 occurred, change the join node definition:
Delete the minimum number of branches required and enter the numberagain. Then activate the workflow and re-start it.
If error number 2 occurred, it involves an internal error in theworkflow definition:
After a parallel step with table processing there is no or more thanone join node. To join the parallel branches however, one join node isrequired.
INCLUDE NA_WF-ADMINISTRATOR OBJECT DOKU ID TX