Sorry for the delayed response.
Based on our investigation, we found that error message ‘AUHISTZ FILE – RECORD NOT FOUND’ displayed was due to invalid record in AUHISTZ file.
Program will expand the message from history log file before display to online screen, when the record is incorrect, program fail to expand the message, and program unable to retrieve the record, and this caused ‘AUHISTZ FILE – RECORD NOT FOUND’.
You may need to identify which record in AUHISTZ is incorrect.