Additional checkout form doesn't show as active in order to disable

I can't figure out how to disable the additional checkout form that I added.  When I go to delete it, it shows the additional checkout form is already disabled.   I try enabling it, just to look for any possible form to edit/delete, but it doesn't show the form I had created a long time ago.  The blank one, I try to delete anyway.  And yet, I still get prompted to choose from the many options  when I add a product to my cart.

I'm desperate to disable these options before I  direct people to buy prints at an art fair, in a day. =(

Thank you so much!!!