This script works perfectly in studio and doesn't work at all in game, why?

So basically, I made a stealth script for my group, it works perfectly in studio but doesn't do anything in game. This is the only error I'm getting

startScript re-entrancy has exceeded 3 07:33:54.608 - Script 'Players.Player1.Backpack.Stealth.LocalScript', Line 14 07:33:54.609 - Stack End

This is the script:

local tool = script.Parent
local debounce = false
local char = game.Players.LocalPlayer.Character
local tool = script.Parent
local ra = char["Right Arm"]
local la = char["Left Arm"]
local rl = char["Right Leg"]
local ll = char["Left Leg"]
local t = char["Torso"]--Variables
local h = char["Head"]
local invis = 0.86--Set to how visible you want the stealth to make you
local d = char:GetChildren()
script.Disabled = true
script.Disabled = false
tool.Selected:connect(function(mouse)
    script.Disabled = true
script.Disabled = false
    mouse.KeyDown:connect(function(key)
              if key == "q" then t.Transparency = invis ra.Transparency = invis--Stealth stuff
  la.Transparency = invis
 rl.Transparency = invis        
 ll.Transparency = invis
h.Transparency = invis 
    wait()  elseif key == "e" then
             t.Transparency = 0 ra.Transparency = 0--UnStealth stuff
  la.Transparency = 0
 rl.Transparency = 0            
 ll.Transparency = 0
h.Transparency = 0  
wait() debounce = false
end  
 end)
end)
tool.Selected:connect(function(mouse)
    mouse.KeyDown:connect(function(key)              
if key == "q" then  for i=1, #d do 
        if (d[i].className == "Hat") then d[i].Handle.Transparency = invis 
             wait() 
            end
        end
            end
        end)
        end)
        tool.Selected:connect(function(mouse)
    mouse.KeyDown:connect(function(key)
              if key == "e" then  for i=1, #d do 
        if (d[i].ClassName == "Hat") then d[i].Handle.Transparency = 0
             wait() 
    end
        end
            end
        end)
        end)
        tool.Deselected:connect(function(mouse)
    t.Transparency = 0 ra.Transparency = 0--UnStealth stuff
  la.Transparency = 0
 rl.Transparency = 0            
 ll.Transparency = 0
h.Transparency = 0  
    for i=1, #d do 
        if (d[i].ClassName == "Hat") then d[i].Handle.Transparency = 0

            end
        end
end)