Animation does not play in clone npc?

Hello i'm making a Shooting game and a script that makes for every player a new npc that only they can see and a animation must play in the npc but that is not the problem the problem is that the animation does not want to play in the clone but the non cloned npc does the animation i don't under stand

Here is the script

wait(4)
local hum = script.Parent.Humanoid

local anim = hum:LoadAnimation(script.Parent.cheeto)
repeat
anim:Play()
wait(2)
until true == false
	

here is where the script is

Script : in the npc and it is a normal script

NPC: Game.Workspace

help?

Make sure it is a server-side script. Assuming that NPC is in workspace and the Animation is in the script.

wait(4)
local humanoid = script.Parent.Humanoid

local anim = humanoid:LoadAnimation(script.AnimationName)
anim:Play()
wait(2)
anim:Stop()