all my mods and sweps are broken

every time i click on the swep such as kermites weapon packs or the barret 50.cal and other it comes up with this lua error or it wont give them to me even though they were working five minutes before

weapons/rg_base/shared.lua:643: attempt to call method ‘SprintEnable’ (a nil value)


(User was banned for this post ("Wrong forum" - mahalis))