We have 6 forms posted at our site, two of which have PayPal set up for required payments. Both of these forms have suddenly stopped appearing on the site page, while the non-payment forms are all fine. Examples:
Not working: http://www.strollingoftheheifers.com/gallery-walk-street-festival-registration/
We have made not changes in the code on the page, in the form itself, or in the PayPal setup.
What could be causing this and how can we fix it?