I can't add more products! The button is STUCK!

The button has been stuck for over three hours, and that is after trying a different browser and refreshing the page and browser over and over and over!

I am trying to add more products, but it won't let me!

What ever is making things "stick" all the time needs to get corrected!

Thanks.

I cloned your form to test it and was able to add products without issue:

Are you still unable to do so on your end?  I tried with your copy of the form and was able to add products to it as well.