Help! player model won't load! (gmod)

I wanted to change my player model so I downloaded the Yahtzee player model (this one http://steamcommunity.com/sharedfiles/filedetails/?id=105292871&searchtext=yahtzee) but I joined a sever to see that my player model couldn't do anything but float around, the player model was smeared colors that barely looked human, so I quit from the sever, disable the player model, and retry, but the same thing happened, it did't even return me to the original player model even thought i disable it, what do i do? this is the error http://steamcommunity.com/sharedfiles/filedetails/?id=498620510