Hey guys,
So the forum went down yesterday and throughout today.
I talked to the host manager and these are his words:
Host: Should be back
JDF: Yup, looks like it is.
Host: But you really really need to upgrade your forum software... it's looking like attacks on it are causing problems for the whole server
So after he fixed it on his side and ran a forum & database backup, I upgraded the forum from SMF2.03 to the latest 2.07.
Everything except a few Language files was updated.
Let's try out the forum and see if those Error 500's come up again and then we'll see what happens.