MUCREFILERR, Error in/at EEEE creating database DDDD (region RRRR)
Run Time Error: Message accompanying another message indicating the failure to create an autodb database file. EEEE indicates the $ZPOSITION of the application which made the global reference that attempted to bring the database file into existence.
Action: Use the preceding message to diagnose and correct the problem, which may include missing environment variables and/or insufficient space or user privileges. Consider whether autodb creation is appropriate for this database file.