Colour tool

Hi, my colour tool has stopped working for some reason, it simply does nothing when I point and click at something with it. It works fine in multiplayer, but not in singleplayer. Please don’t tell me to re-install gmod because i’m not willing to do that for one tool. I’m aware i’m being stupid but I have no idea how to fix this, if anyone has a fix for this or any ideas please post them here :).

You should have two of them. Just use the other!

You got the Color Tool, and the Colormater. or w.e