All my tools are broken!

Evey thing in the tools section is still there but when i click on one a big red error comes up above my head and they don’t work. Before the big red error a little white and blue ball called a hopwire would show up as my tool and it wouldn’t do any thing so i deleted all files named hopwire and now my fools are dead. Ive look every where else like steam support but no luck. This for some reason only happens in single player. if i use tools in multi player they work fine except for the little ping sound with the blue light.

The one solution in this case is deleting your whole folder, except your maps folder, because it can’t be there, then restart the game.