Weapon attachments Please Help!

my friend has been playing fivem for a little bit now and he can’t put any attachments on his gun
he also can’t see any one’s gun attachments when he goes into vMenu to add a weapon attachment it just shows that there are no attachments

#1 It happens on all server
#2 Hes reinstalled fivem lots of times
#3 Hes reinstalled GTA also
#4 he has one mode to change the looks of flashlights (not it I have it installed did nothing)
#5 It’s my server we don’t have anything resources that would have an effect on it

please help!!