Can't get into Open Aura HL2 RP

I tried to join my friends server running “[OA-FINAL] HL2 RP”. I get in, it says “Please wait while the server config is opened.”, but once it says “Initializing Open Aura”, it doesn’t move and console says

Toybox Auth Error: [Couldn’t Connect] (retying in 1 seconds)
Toybox Auth Error: [Couldn’t Connect] (retying in 2 seconds)
Toybox Auth Error: [Couldn’t Connect] (retying in 3 seconds)
Toybox Auth Error: [Couldn’t Connect] (retying in 4 seconds)

And so on and so forth. I’ve already tried reconnecting and restarting Gmod, but can not figure out what the problem is. Anyone have the answer or any suggestions?

It could be a server-side problem.