I Don't understand, I got everything set up but It wont work in player?

So I made a script that uses clothes when you spawn and it works PERFECTLY when i press play on Roblox studio it works fine but when I play in a real game it does not work! (filtering not enables)

is is what i have:

game.Players.PlayerAdded:connect(function(plr)
	plr.CharacterAdded:connect(function(char)
game.Players.LocalPlayer.PlayerGui.ScreenGui.GOB.Girl.MouseButton1Click:connect(function()
game.Players.LocalPlayer.PlayerGui.ScreenGui.BegineChoose.Prisoners.MouseButton1Click:connect(function()
	print("hello")
		Delay(1, function()
		local stuff = char:GetChildren()
		
		for i = 1,#stuff do
			if stuff[i].ClassName=="Hat" or stuff[i].ClassName == "ShirtGraphic" or stuff[i].ClassName=="Pants" or stuff[i].ClassName == "Shirt" or stuff[i].ClassName == "BodyColors" or stuff[i].ClassName == "CharacterMesh" --[[ do you want charactermesh to be removed? Else put it out!--]] then
			stuff[i]:Remove()
			end
		end
		local stuff1 = char.Torso:GetChildren()
		for i = 1,#stuff1 do
			if stuff1[i].ClassName=="Decal" then
				stuff1[i]:Remove()
			end
		end
		
		local hat1 = game.ServerStorage.UniformG.Hats1:GetChildren()
		if #hat1 >0 then
		local i = math.random (1,#hat1)
		hat1[i]:Clone().Parent=char
		hat1[i].Handle.Position = char.Head.Position
		end
		
		local hat2 = game.ServerStorage.UniformG.Hats2:GetChildren()
		if #hat2 >0 then
		local i = math.random (1,#hat2)
		hat2[i]:Clone().Parent=char
		hat2[i].Handle.Position = char.Head.Position
		end
		
		
		local hat3 = game.ServerStorage.UniformG.Hats3:GetChildren()
		if #hat3 >0 then
		local i = math.random (1,#hat3)
		hat3[i]:Clone().Parent=char
		hat3[i].Handle.Position = char.Head.Position
		end
		
		local shirts = game.ServerStorage.UniformG.Shirts:GetChildren()
		if #shirts >0 then
		local i = math.random(1,#shirts)
		shirts[i]:Clone().Parent=char
		end
		
		local Pants = game.ServerStorage.UniformG.Pants:GetChildren()
		if #Pants >0 then
		local i = math.random (1,#Pants)
		Pants[i]:Clone().Parent=char
		end		
		
		local bodycolor = game.ServerStorage.UniformG.BodyColors:GetChildren()
		if #bodycolor >0 then
		local i = math.random(1,#bodycolor)
		
		char:FindFirstChild("Head").BrickColor = bodycolor[i].Value
		char:FindFirstChild("Left Arm").BrickColor = bodycolor[i].Value
		char:FindFirstChild("Left Leg").BrickColor = bodycolor[i].Value
		char:FindFirstChild("Right Arm").BrickColor = bodycolor[i].Value
		char:FindFirstChild("Right Leg").BrickColor = bodycolor[i].Value
		char:FindFirstChild("Torso").BrickColor = bodycolor[i].Value	
		end
		
		local faces = game.ServerStorage.UniformG.Faces:GetChildren()
		if #faces > 0 then
		local stuff2 = char.Head:GetChildren()
		for i =1,#stuff2 do
			if stuff2[i].ClassName=="Decal" then
				stuff2[i]:Remove()
			end
		end
		
		local i = math.random(1,#faces)
		faces[i]:Clone().Parent=char.Head	
		end
		
		local packages = game.ServerStorage.UniformG.Package:GetChildren()
		if #packages > 0 then
		local i = math.random (1,#packages)
		local stuff3 = packages[i]:GetChildren()
		for i = 1, #stuff3 do
			stuff3[i]:Clone().Parent=char
			end
			end
		end)
		end)
		end)
		end)		
	end)

First of all,

game.Players.LocalPlayer

is only accessible from the Client, in Filtering Enabled.

Some parts of your script is FE compatiable and some isn't.

You should think about structuring your code, so first of all you need to look at the fact that this is non FE. This means that everything can be done from a LocalScript in StarterPlayer.

Another thing is that

:connect

is deprecated, you should be using

:Connect

You seem to want to change the clothes based on which GUI you choose. Here's how I would do this (local script in game.StarterPlayer.StarterPlayerScripts

local Player = game.Players.LocalPlayer
local PlayerGui = Player:WaitForChild('PlayerGui')
local GUIButton = PlayerGui.-- Locate this to your GUI button

GUIButton.MouseButton1Click:Connect(function()
	if Player.Character then -- Checks if there is a Character
		-- Do your custom changes.
	end
end)

To begin with, you should probably used WaitForChild() instead of FindFirstChild() for the character because the character doesn't load all in at once. Because this is a local script, the PlayerAdded event is unnecessary. You should also put the uniforms in ReplicatedStorage because local scripts cannot access ServerStorage. Below, I have refactored the code a little bit by implementing the fixes, removing deprecated functions and adding more variables to increase readability.

local player = game.Players.LocalPlayer
local playerGui = player:WaitForChild("PlayerGui")
local screenGui = playerGui:WaitForChild("ScreenGui")
local repStorage = game.ReplicatedStorage
local uniformG = repStorage:WaitForChild("UniformG")

player.CharacterAdded:connect(function(char)
	local torso = char:WaitForChild("Torso")
	local head = char:WaitForChild("Head")
	local leftArm = char:WaitForChild("Left Arm")
	local rightArm = char:WaitForChild("Right Arm")
	local leftLeg = char:WaitForChild("Left Leg")
	local rightLeg = char:WaitForChild("Right Leg")
	
	
	screenGui.GOB.Girl.MouseButton1Click:Connect(function()
		screenGui.BegineChoose.Prisoners.MouseButton1Click:Connect(function()
			wait(1)
			for i , v in pairs(char:GetDescendants()) do
        		if v:IsA("CharacterAppearance") or v:IsA("Accoutrement") then
        			v:Destroy()
        		end
        	end
        		
        	for i , v in pairs(torso:GetDescendants()) do
        		if v:IsA("Decal") then
                	v:Destroy()
            	end
        	end
        		
        	local hat1 = uniformG.Hats1:GetChildren()
        	if #hat1 > 0 then
        		local i = math.random (1,#hat1)
        		hat1[i]:Clone().Parent=char
        		hat1[i].Handle.Position = char.Head.Position
        	end

        	local hat2 = uniformG.Hats2:GetChildren()
        	if #hat2 > 0 then
        		local i = math.random (1,#hat2)
        		hat2[i]:Clone().Parent=char
        		hat2[i].Handle.Position = char.Head.Position
        	end


        	local hat3 = uniformG.Hats3:GetChildren()
        	if #hat3 > 0 then
        		local i = math.random (1,#hat3)
        		hat3[i]:Clone().Parent=char
        		hat3[i].Handle.Position = char.Head.Position
        	end
				
        	local shirts = uniformG.Shirts:GetChildren()
        	if #shirts > 0 then
        		local i = math.random(1,#shirts)
        		shirts[i]:Clone().Parent=char
        	end
        		
        	local Pants = uniformG.Pants:GetChildren()
        	if #Pants > 0 then
        		local i = math.random (1,#Pants)
        		Pants[i]:Clone().Parent=char
        	end     
        		
        	local bodycolor = uniformG.BodyColors:GetChildren()
        	if #bodycolor > 0 then
        		local i = math.random(1,#bodycolor)
        		head.BrickColor = bodycolor[i].Value
        		leftArm.BrickColor = bodycolor[i].Value
        		leftLeg.BrickColor = bodycolor[i].Value
    			rightArm.BrickColor = bodycolor[i].Value
        		rightLeg.BrickColor = bodycolor[i].Value
        		torso.BrickColor = bodycolor[i].Value    
        	end
        		
        	local faces = uniformG.Faces:GetChildren()
        	if #faces > 0 then
				for i , v in pairs(head:GetChildren()) do
					if v:IsA("Decal") then
						v:Destroy()
					end
				end
        		local i = math.random(1,#faces)
        		faces[i]:Clone().Parent = head  
        	end
        		
        	local packages = uniformG.Package:GetChildren()
        	if #packages > 0 then
        		local i = math.random (1 , #packages)
            	for i , v in pairs(packages[i]:GetChildren()) do
            		v:Clone().Parent = char
            	end
            end
		end)
	end)
end)