There are some cases where the WorkflowGen Engine crashes when running a request and there are not enough details to pinpoint the source of the error.
To get more details:
1- Go to the wfgen\web.config file
2- Change the value of the configuration EngineTraceMode to “Y”.
3- Reproduce the issue.
4- A log will be generated in the App_Data/LogFiles/Engine folder. You can consult this log to determine at which moment the engine has crashed.
IMPORTANT NOTE: Make sure to replace the value of EngineTraceMode back to “N” once you’re done with your investigation in order to avoid unnecessary logs.
If the source of the error is not clear. Feel free to send the log file to the WorkflowGen team and we’ll be more than happy to investigate the issue.