Fix certain crashes when invalid values are passed in an callback
Fix certain crashes when invalid values are passed in an callback

Seprum/SampSharp,Seprum/SampSharp,rrev/SampSharp,ikkentim/SampSharp,rrev/SampSharp,rrev/SampSharp,Seprum/SampSharp,ikkentim/SampSharp,Seprum/SampSharp,ikkentim/SampSharp