Grey Character. How to fix without reinstalling?

[Wick]

Well, not too long ago, I was messing around with the garrysmods folder to do some lua editing. I didn't like how fast the running and walking was in sandbox mode. I also did not like the default weapon loadout, so I was editing that as well. After removing the default weapon loadouts and editing the running/walking speed, I went to third person to only find out my models were just a grey man that has no sort of animation whatsoever. I did not mess with any playermodels in any LUA files. I just simply changed the running/walking value and the weapon loadouts, which worked, but now I have a grey model that has no animation. Killing myself did not fix this problem nor changing as a different playermodel. Here is a puush of what I edit:

http://puu.sh/gh6Am/6602a31784.png

My question is, how do I fix this without reinstalling gmod or is that my only way of fixing it?

[Protocol27]

Try verifying your game files.

Go to game library, then right-click on Garry's Mod, then go to properties, and then go to local files, then you'll have an option to verify your game files.

[KinseliplierBro]

I downloaded the Markiplier character model and now I keep getting an error where the Markiplier character model has white hair when its supposed to have black hair and its not from me changeing the model color in the c menu cause that dose not change anything with this model. it randomly changes back to black hair when I clog mod and restart it or leave the map and reload it or switch maps sometimes but that dose not always work

[Darkshadowrogue]

Hey OP. That's due to Half Life 2's default playermodel. Gordon Freeman doesn't actually have a third person model, he only has Gordan Grayman, a suspicious looking man, never seen move but sliding across the floor - untextured and shifty. Basically, the game is working as intended and I wouldn't know how to fix it - but it's supposed to be like that.

Kinsella, that is due to incorrect lightmapping and shaders. It'll be a model/map issue, not your issue.