Customer can't submit payment?? Says "restricted account"

And I couldn't either!

I have your account and all seems good, I also see a thread that seems to be related to the same concern: https://www.jotform.com/answers/816307-Why-does-account-show-restricted. 

The same as my colleague, your account seems to be good, now I see that this is related to payments and it happens when your customers submit the payment, I have checked your form and I see that you are using the PayPal Pro integration, upon checking the credentials that you have added I see that this might be causing the issue because when I clicked on the "Verify" button it is unable to verify your credentials:

I would suggest you to double check your credentials and verify that all is working fine on the PayPal's side, once this is verified, please try to integrate your form again. 

If after doing this it is still not working, do get back to us and provide us with more details about the error that you or your users are getting, we will be glad to help.