I need help to make a Script warning script but it seems to all go wrong with my GUI?

I am a new Lua Coder and i tried to code a warning script where the moderator writes a message of warning to the specified user. But it seems to be going wrong, I tried to look online and change a few things but I seem to be getting the same error of this-

Error- SliceCenter ((507.000000,112.000000), (509.000000,113.000000)) is outside the bounds of imageOffset ((500.000000,112.000000), (501.000000,113.000000)) for GuiImage[CoreGui.TopBar.TopBarFrame.RightFrame.MoreMenu.MoreMenuContainer.OverlayContextualMenu.PositionFrame.BaseMenu.ClippingFrame.ScrollingFrame.cell 2.StateOverlay]

Here is my code.

local Name = game.Players.Name
local InputName = script.Parent.Parent.PlayerUsername.Text
local WarnReason = script.Parent.Parent.Reason.Text


script.Parent.Parent.WARN.MouseButton1Click()
if InputName == Name then
	script.Parent.Parent.WarningToPlayerNotify.Visible = true
	local WarnDisplay = Instance.new('TextLabel')
	
	-----Configuraitons-----
	WarnDisplay.BackgroundColor3 = {0,0,0}
	WarnDisplay.BackgroundTransparency = {0.5}
	WarnDisplay.Position = {0.238,-0.319}
	WarnDisplay.Size = {511,50}
	
	---Text Configurations--
	WarnDisplay.Font = Enum.FontSize.Size14
	WarnDisplay.Font = Enum.Font.Code
	WarnDisplay.TextColor3 = {255,255,255}
	------------------------
	
	----Text Display Work---
	WarnDisplay.Text = 'Reason: '..WarnReason
	WarnDisplay.Text = 'Next Punishment: Mute|Kick or Ban'
	------------------------
	
	wait(5)
	
	WarnDisplay.Visible = false
	script.Parent.Parent.WarningToPlayerNotify.Visible = false
end

if InputName ~= Name then
	script.Parent.Parent.WarningErrorMessage.Visible = true
	wait(5)
	script.Parent.Parent.WarningErrorMessage.Visible = false
end

Your script isn't causing this error, so don't worry. It's an issue with Roblox that should be fixed soon.