Workflow gets canceled automatically with (500) Internal Server Error.
Workflow is getting cancel with the HTTP 500 error. Problem: RequestorId: 9dea9a29-bb82-214a-0000-000000000000. Details: RequestorId: 9dea9a29-bb82-214a-0000-000000000000. Details: An unhandled exception occurred during the execution of the workflow instance. Exception details: System.ApplicationException: HTTP 500 {"Transfer-Encoding":["chunked"],"X-SharePointHealthScore":["0"],"SPClientServiceRequestDuration":["30"],"SPRequestGuid":["9dea9a29-bb82-214a-92f0-943af4411ac2"],"request-id":["9dea9a29-bb82-214a-92f0-943af4411ac2"],"X-FRAME-OPTIONS":["SAMEORIGIN"],"MicrosoftSharePointTeamServices":["15.0.0.4420"],"X-Content-Type-Options":["nosniff"],"X-MS-InvokeApp":["1; RequireReadOnly"],"Cache-Control":["max-age=0, private"],"Date":["Fri, 31 Jan 2014 20:19:03 GMT"...