Is there somthing wrong with this group only door script? [Not answered]

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GroupID = 1070877 --Change this to your groups ID
Door = script.Parent
Kill = false --If a player isnt in the group, then kill them on touch.
Teleport = false --Teleport Mode. Teleports to a certain position
X = 0 --For use with the Teleport Mode. Set to the X Position
Y = 0 --For use with the Teleport Mode. Set to the Y Position
Z = 0 --For use with the Teleport Mode. Set to the Z Position
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DB = false
script.Parent.Touched:connect(function(p)
if p.Parent:FindFirstChild("Humanoid") then
player = game.Players:GetPlayerFromCharacter(p.Parent)
if player then
if not DB then
DB = true
if player:IsInGroup(GroupID) then
if not Teleport then
Door.Transparency = 1
Door.CanCollide = false
wait(0.4)
Door.Transparency = 1
Door.CanCollide = true
DB = false
elseif Teleport then
player.Character.Torso.CFrame = CFrame.new(X,Y+2,Z)
DB = false
end
elseif not player:IsInGroup(GroupID) then
if Kill then
p.Parent.Humanoid.Health = 0
DB = false
elseif not Kill then
DB = false
end
end
end
end
end
end)

It keep glitching after somone walks through it a couple times, thus, they can't walk through it anymore.

I noticed that it has a lot of unnecessary stuff since I see 2 values are false.

GroupId = 1070877

script.Parent.Touched:connect(function(hit)
	if hit.Parent and game.Players:GetPlayerFromCharacter(hit.Parent) then
		p = game.Players:GetPlayerFromCharacter(hit.Parent)
		if p:IsInGroup(GroupId) then
			script.Parent.CanCollide = false
			script.Parent.Transparency = 0.7
			wait(0.4)
			script.Parent.CanCollide = true
			script.Parent.Transparency = 0
		end
	end
end)