It Always says "MouseButtonClick1" is not a valid member of ImageLabel what do i do?

There are a few issues here.

1) You should be using a TextButton instead of a TextLabel. TextLabels are meant to just display text, while TextButtons are meant to be clicked to perform an action.

2) :connect() is deprecated. You should use :Connect() instead. The script should look like this:

3) You are attempting to change the frame that is in the StarterGui. The way you are doing it, it will change the Gui when a player is spawned in again. However, when a player joins a game the StarterGui is cloned into PlayerGui. This script should be a LocalScript so you can do a nifty little thing called LocalPlayer, which you can use to immediately find the player that pressed the button.

The script should look like this:

script.Parent.MouseButton1Click:Connect(function()
    game.Players.LocalPlayer.PlayerGui.ScreenGui.Frame.Visible = false
end)

You need to change your TextLabel into a TextButton, put a LocalScript in it, then paste the script above.

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