Incenidary grenades not working

on my server when i throw them it just shows my hand cock back and nothing else happens it just dissapears i dont know waht is wrong every other grenade works whats the problem with the incen please help this also happens to everyone else no one can do incen trap anymore

What gamemode are you running? Also, what addons are you running and is anything printed in console when it disappears?

im running ulx pointshop ttt deathlog tttkillmsg end round sounds diamond sword swep pointshop master point shop extras master pointshop mysql master
what could be the problem

Can someone Please help me

If you actually use grammar right, it would help you help us help you help us all.
Now, posting the error could be useful.