Why does this loop keep crashing my studio?

CarbonH.Touched:connect(function(part)
 
local debounce = false
local h = part.Parent:FindFirstChild("Humanoid")
	if not h and (not debounce) and (part.Parent ~= Player.Character) and (part.Parent.Parent ~= Player.Character) then
			
		debounce = true
		
		local function debri()

local	Debri = Instance.new("Part")
		Debri.BrickColor = part.BrickColor
		Debri.Material = part.Material
		Debri.Anchored = true
		Debri.CanCollide = true	
		Debri.Size = Vector3.new(math.random(5, 20), 4, math.random(5, 20))
		Debri.CFrame = CFrame.new(CarbonH.Position) * CFrame.Angles((math.random()-0.5)*math.pi*2.4, (math.random()-0.5)*math.pi*2.4, (math.random()-0.5)*math.pi*2.4)
		Debri.Parent = workspace	
		Debri.TopSurface = 10
		Debri.BottomSurface = 10	
		
local	Debri2 = Instance.new("Part")

		Debri2.BrickColor = BrickColor.new("Black")
		Debri2.Material = 800
		Debri2.Anchored = false
		Debri2.CanCollide = true	
		Debri2.Size = Vector3.new(5, 5, 5)
		Debri2.CFrame = CFrame.new(CarbonH.Position) 
		Debri2.Parent = workspace	
		Debri2.TopSurface = 10
		Debri2.BottomSurface = 10
		
		
		for i = 1, 4 do
		
		local	Debris = Debri:Clone()
				Debris.Parent = workspace
				Debris.Size = Vector3.new(math.random(5, 20), 4, math.random(5, 20))
				Debris.CFrame = CFrame.new(CarbonH.Position) * CFrame.Angles((math.random()-0.5) * math.pi * 2.4, (math.random()-0.5) * math.pi * 2.4, (math.random()-0.5) * math.pi * 2.4)	
			
			end
				end
				
				local ExplosionRingPart= Instance.new("Part")
				
				local ExplosionRingMesh = Instance.new("SpecialMesh", ExplosionRingPart)
				ExplosionRingPart.Anchored = true
				ExplosionRingPart.CanCollide = false
				ExplosionRingPart.Transparency = 0.5
				ExplosionRingPart.CFrame = CFrame.new(CarbonH.Position - Vector3.new(0, 2, 0)) * CFrame.Angles(1/2 * math.pi, 0, 0)
				ExplosionRingMesh.Scale = Vector3.new(5, 5, 0.3)
				ExplosionRingMesh.MeshId = "http://www.roblox.com/asset/?id=3270017"
				ExplosionRingPart.Parent = workspace
		
				while ExplosionRingMesh.Scale.X ~= 10 and ExplosionRingPart.Transparency ~= 1 do -- the loop that keeps crashing
					
					ExplosionRingMesh.Scale = ExplosionRingMesh.Scale + Vector3.new(1, 1, 0)
					ExplosionRingPart.Transparency = ExplosionRingPart.Transparency + 0.1
						
					wait(0.1)
			
				end	

		debri()
		CarbonH:Destroy()
		
	
		end
			end)

I dont see any problems and the there are no errors in the output. I have no idea why it keeps crashing, please help. Sorry if the code is hard to read, I tried my best to make it as simple as possible.