2D Collision UI Bug

How i do fix this buggy 2D Collision?`

Code (Client):

GameRender = game:GetService("RunService")
UIS = game:GetService("UserInputService")
LPlayer = game:GetService("Players").LocalPlayer
Camera = workspace.CurrentCamera
Char = LPlayer.Character or LPlayer.CharacterAdded:Wait()
PlayerHitbox =script.Parent.Player
GameFrames = script.Parent.Interacts
Humanoid = Char:WaitForChild("Humanoid")
local left,right,IsJumping,YBasedVelocity,runspeed = false,false,false,0,1 -- 1 is normal speed
local Collision
local WallCollison
Humanoid.WalkSpeed = 0
script.Parent.BGMusic:Play()
Camera.CameraType = Enum.CameraType.Scriptable
Camera.CFrame = workspace.BaseTarget.CFrame


Frameworks = {
["walk"] = {
	Vector2.new(0,2),
		Vector2.new(20,2),
		Vector2.new(0,2)
	}
}

function GoLeft()
	Collision = false
	local nowobjects = GameFrames:GetChildren()
	for index,object in pairs(nowobjects) do
		if 
				object.AbsolutePosition.X + object.AbsoluteSize.X > PlayerHitbox.AbsolutePosition.X and
				object.AbsolutePosition.X + object.AbsoluteSize.X< PlayerHitbox.AbsolutePosition.X + (PlayerHitbox.AbsoluteSize.X/2) and
				
			object.AbsolutePosition.Y < PlayerHitbox.AbsolutePosition.Y + PlayerHitbox.AbsoluteSize.Y and
			object.AbsolutePosition.Y + object.AbsoluteSize.Y > PlayerHitbox.AbsolutePosition.Y
		then
			Collision = true
		end
		if not Collision then
	PlayerHitbox.Sprite.ImageRectSize = Vector2.new(-20,20)
	--PlayerHitbox.Sprite.ImageRectOffset = Vector2.new(20,2)
	PlayerHitbox.Position = PlayerHitbox.Position - UDim2.new(.001*runspeed,0,0,0)
		end
	end
	
end

function GoRight()
	Collision = false
	local nowobjects = GameFrames:GetChildren()
	for index,object in pairs(nowobjects) do
		if 
				object.AbsolutePosition.X < PlayerHitbox.AbsolutePosition.X + PlayerHitbox.AbsoluteSize.X and
				object.AbsolutePosition.X > PlayerHitbox.AbsolutePosition.X + (PlayerHitbox.AbsoluteSize.X/2) and
				
			object.AbsolutePosition.Y < PlayerHitbox.AbsolutePosition.Y + PlayerHitbox.AbsoluteSize.Y and
			object.AbsolutePosition.Y + object.AbsoluteSize.Y > PlayerHitbox.AbsolutePosition.Y
		then
			Collision = true
		end
		if not Collision then
				PlayerHitbox.Sprite.ImageRectSize = Vector2.new(20,20)
		
	PlayerHitbox.Position = PlayerHitbox.Position + UDim2.new(.001*runspeed,0,0,0)
			
		
		end
		
	end

end

function JumpPlayer()
	IsJumping =true
	YBasedVelocity = .03
	if PlayerHitbox.Sprite.ImageRectSize == Vector2.new(-20,20) then
			PlayerHitbox.Sprite.ImageRectOffset = Vector2.new(60,2)
	end
	if PlayerHitbox.Sprite.ImageRectSize == Vector2.new(20,20) then
		PlayerHitbox.Sprite.ImageRectOffset = Vector2.new(40,2)
	end
	script.Parent.Jump:Play()
	print("do")
end

function GroundCheck()

	local nowobjects = GameFrames:GetChildren()
	for index,object in pairs(nowobjects) do
		if object.AbsolutePosition.X < PlayerHitbox.AbsolutePosition.X + PlayerHitbox.AbsolutePosition.X and object.AbsolutePosition.X + object.AbsolutePosition.X > PlayerHitbox.AbsolutePosition.X and object.AbsolutePosition.Y < PlayerHitbox.AbsolutePosition.Y + PlayerHitbox.AbsolutePosition.Y and object.AbsolutePosition.Y > PlayerHitbox.AbsolutePosition.Y - (PlayerHitbox.AbsolutePosition.Y/2) then

			return {true,object.Position.Y.Scale}
		end
	end
	return {false, 0}
end


function BumpFunction()
	local nowobjects = GameFrames:GetChildren()
	for index,object in pairs(nowobjects) do
		if 
				object.AbsolutePosition.X < PlayerHitbox.AbsolutePosition.X + PlayerHitbox.AbsoluteSize.X and
				object.AbsolutePosition.X + object.AbsoluteSize.X > PlayerHitbox.AbsolutePosition.X and
				
			object.AbsolutePosition.Y < PlayerHitbox.AbsolutePosition.Y + PlayerHitbox.AbsoluteSize.Y and
			object.AbsolutePosition.Y > PlayerHitbox.AbsolutePosition.Y - (PlayerHitbox.AbsoluteSize.Y/2)
		then
--			WallCollison = true
--			WallCollisonY = object.Position.Y.Scale
			return {true,object.Position.Y.Scale+object.Size.Y.Scale}
		end
	end
	return {false, 0}
end

function Rendergame()
	local GC = GroundCheck()
	local BumpSettings = BumpFunction()
	onground = GC[1]
	groundy = GC[2]

if left then
		GoLeft()
	end
	if right then
		GoRight()
		end
	if IsJumping and GroundCheck() then
		YBasedVelocity = YBasedVelocity - .002
		spawn(function()
		if YBasedVelocity <  0.013 then

			if PlayerHitbox.Sprite.ImageRectSize == Vector2.new(-20,20) then
				PlayerHitbox.Sprite.ImageRectOffset = Vector2.new(80,2)
				end
			if PlayerHitbox.Sprite.ImageRectSize == Vector2.new(20,20) then
					PlayerHitbox.Sprite.ImageRectOffset = Vector2.new(60,2)
			end
		end
			end)
		if YBasedVelocity < -0.01  then
			YBasedVelocity = 0
			IsJumping = false
			if PlayerHitbox.Sprite.ImageRectSize == Vector2.new(-20,20) then
				PlayerHitbox.Sprite.ImageRectOffset = Vector2.new(80,2)
				end
			if PlayerHitbox.Sprite.ImageRectSize == Vector2.new(20,20) then
					PlayerHitbox.Sprite.ImageRectOffset = Vector2.new(60,2)
			end
			end
		end
	
	if not IsJumping then
		if onground then
			YBasedVelocity = 0
			
				
				if PlayerHitbox.Sprite.ImageRectSize ~= Vector2.new(-20,20) then
				PlayerHitbox.Sprite.ImageRectOffset = Vector2.new(0,2)
				end
			if PlayerHitbox.Sprite.ImageRectSize ~= Vector2.new(20,20) then
					PlayerHitbox.Sprite.ImageRectOffset = Vector2.new(20,2)
			end
			
				
				PlayerHitbox.Position = UDim2.new(PlayerHitbox.Position.X.Scale,0,groundy-PlayerHitbox.Size.Y.Scale,0)
		elseif YBasedVelocity > -.01 then
			YBasedVelocity = YBasedVelocity -.002
		
		end
	end
--	if PlayerHitbox.Sprite.ImageRectSize == Vector2.new(-20,20) then
--				PlayerHitbox.Sprite.ImageRectOffset = Vector2.new(80,2)
--				end
--			if PlayerHitbox.Sprite.ImageRectSize == Vector2.new(20,20) then
--					PlayerHitbox.Sprite.ImageRectOffset = Vector2.new(60,2)
--			end
	PlayerHitbox.Position = PlayerHitbox.Position - UDim2.new(0,0,YBasedVelocity,0)
		
		
end



UIS.InputBegan:Connect(function(Input,Gpe)
	
	if Input.KeyCode == Enum.KeyCode.Left then
		left = true
	elseif Input.KeyCode == Enum.KeyCode.Right then
		right = true
	elseif Input.KeyCode == Enum.KeyCode.Z and onground then
		JumpPlayer()
	
		print("jump")
	elseif Input.KeyCode == Enum.KeyCode.X then
		runspeed = 4
		end
	end)

UIS.InputEnded:Connect(function(Input,Gpe)
	if Input.KeyCode == Enum.KeyCode.Left then
		left = false
	elseif Input.KeyCode == Enum.KeyCode.Right then
		right = false
		elseif Input.KeyCode == Enum.KeyCode.X then
		runspeed = 1
		end
	end)

GameRender:BindToRenderStep("Camera",Enum.RenderPriority.Camera.Value + 1,Rendergame)

Video
https://www.youtube.com/watch?v=78uwJmdG2eA&feature=youtu.be
Thx for your answers!

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