Why isn't my site's checkout button working on mobile devices?

My site checkout button isn’t working! When you add items to cart then proceed to checkout, it doesn’t move. Looks like this is isolated to mobile devices only.

NEED HELP ASAP!!!

ok, how to fix this???

sorry I hit accepted solution by accident. I need help fixing the issue. Please advise asap

Do you have a fix here?

Not sure if I can trust you. I don’t see many solutions from you posted.

can you tell me what steps I should look at first.