Server 12 runs great for a few days, than not available error
Operating system version
Mac OS X 10.8.1
Description of the issue
Server runs great and database is available remotely to all users for a few days. Than error appears in the Server Admin Console and makes database unavailable to all users. Error is in screen shot attached. After hitting OK and restarting database all is available again. Why is this happening and how can I prevent this error?