Hello 
Ill keep this simple as it could be a simple fix for someone…My store has been working fine up until last night.
I had noticed my “add to cart” buttons work on my home page, However my product pages all fail to complete the “add to cart” function
I have created fresh-new buttons & i get the same problem.
Last night the changes to the site were, adding a contact form to the products page, a few small FAQ’s & a whats app sharing app.
I have a feeling the whats-app sharing programme has changed my java script & is no longer allowing the button to function properly.
I am using the boundless theme if this helps.
Kind regards…A Guy in need of help!