After logging in DFWorks web page, the home page displays the "System Error" message.
Check the free space on the E: & G: drives and see if they have less than 200MB free. If they do, go to:
and check the date of the last good RMAN back up.
If the E: & G: drives are full and the RMAN is not current, the RMAN backup process has failed and needs to be fixed.
Contact the Oracle DBA to resolve the backup problem.
UPDATED: April 19, 2017