Message SAP /EACA/GL_DOCREP204 - Error during registration of reader class &3 for application &2

Diagnosis
You were trying to register a reader with handle &v3& in accountingsystem &v1& for application &v2&. Errors occurred when the system triedto save to the database.

System Response
Error during INSERT to table /EACA/TGLREADER.

Procedure
Inform your system administrator.