PayPal Payments not working

I really need help with this please.  I've spoken to PayPal and they indicate that the API may need to be refreshed.  Customers can't pay.  They are getting an error with the PayPal logo that indicates:

Things don't appear to be working at the moment. Please try again later.

This is a duplicate thread to https://www.jotform.com/answers/944051 which was just addressed. So, we are marking this thread as answered. We request you to follow-up on the other thread if you have any questions with this issue.

Please be noted that it is not required to open multiple threads for the same issue. The threads will be answered in the order they come in and assigned. 

Thank you!