unity – ArgumentException for unused axis

I’m creating a simple Pachinko-style game and using a single button to drop balls in. Everything is working great, but the Unity Editor is throwing an ArgumentException for the Submit axis “not set up”, so I added it to the InputManager only for it to then throw the same error for the Cancel axis.

When I first started the project I deleted the default axes from the InputManager and replaced them with a single one I’ve called “Fire”. I don’t use any other axes in any of my two script.

If I select the error in the console it jumps me to BaseInput.cs

I researched this for a while, but the only solution I saw was regarding a misspelling of the axis name, but I’d like to be clear that in this case the axes involved are totally unused in my code.