NPC's have no animations.

Hello, I recently installed a few mod’s which concludes me to the possibility one of those mod’s was the cause of this. So the problem I’m having is npc’s, specifically the Combine and Citizen, don’t have any animations anymore. They’re stuck in the default stance [with their arms stretched out and their weapon in their lower torso].

Does anyone know a way to fix this common (or uncommon) issue without re-installing Garry’s Mod itself?

Here’s a pic of how the npc’s look like in-game. Pardon the silly captions it isn’t my picture:

You have to delete you’re garrysmod folder, than relaunch Gmod, it will remake the folder, but you will lose all your addons.