...but this error was hidding the real error which I found in the confluence log files:
unable to extend lob segment confluence
At this point I suspected the database was full, a little Google searching led me to find some stuff about oracle. Here are the steps I took to correct the issue:
- log in to the server via vpn
- open the oracle db admin console
- the dashboard in oracle listed 1 error - Users table 97% full
- changed the space allocation on the users table from 50mb to 100mb and set it to auto increment by 10mb up to 8gb.