https://userapps.support.sap.com/sap/support/knowledge/en/2931819
2931819 - PY-FR: DSN: dump when uploading response files ( CRM, AEE ...) in B2A | SAP Knowledge...
Dump OBJECTS_OBJREF_NOT_ASSIGNED_NO Access using a 'NULL' object reference is not possible in class CL_HRPAYFR_DSN_B2A_UTIL/ SET_FILES_DETAILS_TO_PROCESS