Fyi it's C0000 instead of o, if you can't find anything with google fu that's probably why.
Your OS is corrupted. You can try running a repair or clone one of the other terms' hard drives but this is probably a good opportunity just to upgrade.
I should ask, is there anything saved specifically to that terminal? Everything should be on the boh or master so unless you've got something saved locally recovery probably isn't worth it.