L4D Infected/Survival models

Its so weird, this always crash my gmod for some reason, i put the required files in gmod addon folder as a folder “L4D” and whenever i view Infected/Survival it crashes, i tried downloading the fix but when i view it i see some error and do not have any survival, when i try spawn the infected it lag and crash, can anyone help me?

bump, no one has a solution?