tbogt crashes from gun mods

[Roadkid26]

Alright so whenever i put in a new gun mod, most of the time i will use a weapon editor for it, and from the guns i put in i know that i have to change the animations if i have to, for example on the golden uzi in tbogt, i switch it with a ump 45 and i change the animation to the mp5k animation, or on the m249 mg i replace it with a m4 and change the animation to the ak47 animation, and so on. But every time i change the animation, it works for a while and then it crashes when i try to aim or shoot when i start the game. Is this normal to happen or is it just me? As far as i know i think its the animation that messes it up, but i could be wrong. All the other changes were just weapon range or accuracy or whatever.