system can receive email, but cannot create workitem

Hello Expert,

I think already do all the IMG settings about ERMS, but question is system now can receive internet email, but cannot create workitem. Cannot go to work flow.

In SWI1, there is always empty.

In CRM_ERMS_LOGGING, there is exception in class CL_CRM_ERMS_ADD2FB_DOCUMENT.

Please help me about this.

Thanks a lot!