Firstly whenever I clicked on multi player the game would just crash instantly. I also tried getting on through /jo but that would also crash it.
so I tried logging out and back in to fix it, I logged out but whenever I try to log back in I get "error: couldn't connect to servers."
I've also tried making new accounts, reinstalling, and trying older versions but all have had the same message.
It's been going on for about 3 days now.

Are you using the steam version or the non steam? (if non what version?) Try reinstalling your GPU drivers and try again or get the steam version if you are using the non steam. Steam version has like all the bugs fixed out.

I've used both steam version and non-steam 4.92 as well as 4.9, 4.8, and 4.6 non-steam.

post a crash.log file next time your client crashes.
it can be found in toribash directory.

Slight problem with that. Since I logged out and cannot register I can't access the multi player list, so I'm unable to crash it.