Plutonium

Okay, so I wanted to try both solutions, restart my PC, and repair the files, but it seems restarting my PC just worked? the game booted to the menu and everything, as if the problem never happened? I'll probably playtest Zombies and everything to make sure everything is right, but yeah. That fixed it.

So, I was looking to install T5 on Plutonium, and I did the normal process. Got the torrent file from the official Plutonium site, torrented the file, had the Plutonium Launcher find it and everything, and I thought everything was in perfect condition. The multiplayer worked fine and seemed in order, no errors, nothing, but then, I boot T5 Zombies, and immediately get greeted with an error.

I am not quite sure what is happening, but I did a little digging and could find nothing on it. Hope somebody can help me.