Gamepass Overhead Not Working (Need Help)?

 if game:GetService("MarketplaceService"):UserOwnsGamePassAsync(player.userId,4744766) then
       
            if character.Head:FindFirstChild("BillBoard") then
	         
                character.Head.BillBoard.TextLabel.Text = "Lord Bill Nye VIP"
            else
                local clonegui = billboardgui:Clone()
                clonegui.TextLabel.Text = "Lord Bill Nye VIP"
                clonegui.TextLabel.TextColor3 = Color3.fromRGB(79,255,94)
                clonegui.Parent = game.Workspace:WaitForChild(player.Name).Head
                  

Okay so i need help with that don't mind i have the rest of the script but this is what i need help with the other Overhead works

I believe you don't have a billboard in the character head so Instance it using

local BillBoard = Instance.new('BillboardGui')
BillBoard.Parent = character.Head