could someone help me kick player1 when there is a wrong code given? [not so serious]

This is in fact very easy and you can do this from server or client. In this case we can kick the player using the local script because we are kicking the client that the code is on so there are no problems. But for kicking other players you will need to use remote events.

	local code = script.Parent.Parent.Code
	local textbox = script.Parent.Parent.password
	local plr = game:GetService("Players").LocalPlayer
	 
	 
	script.Parent.MouseButton1Click:Connect(function()
	    if textbox.Text == code.Value then
	        script.Parent.Text = 'Welcome to [UnnAmeD]'
	        wait(2)
	        script.Parent.Text = 'have a nice day [remember to read rules]'
	        wait(4)
	        script.Parent.Parent.Visible = false
	    else
	        script.Parent.Text = 'Incorrect code'
	        wait(2)
		plr:Kick("Your code is incorrect!")
	    end
	end)

Enjoy your day and if you have any problems please contact me