Can't call specific function from On Click()

Hi guys! Very new to Unity so apologies if this is a simple thing, basically I have a script attached to my MainMenu component in my Hierarchy, and that MainMenu component is inside the On Click portion of a button I have. The button sees my script - MainMenu, but it doesn’t see any of my functions inside that cs script - PlayGame(), Quit(), etc. I was wondering how I could get that to show up. Thanks!

Here is the script:

Here is what I see inside Unity:

should work, are you sure the script is attached to the MainMenu object?

Make sure you have an EventSystem in the hierarchy. This can be found by right-clicking hierarchy, going to UI, then going to EventSystem.