Unable to submit the payment

Hi, 

Im facing an issue trying to submit payment(both paypal and credit/debit button) when I tried to test my form out. Attached is the error message. Could you kindly advise please.  

Greetings and thank you for your message.

I have tested your form and I was not able to replicate the problem.

Can you please let us know if the problem is still present? If it is, please let us know when does it happen? Does it happen if any specific fields are selected? Do you have a problem submitting it if the form is empty? Does the problem happen in other browsers as well? What browsers you have tested?

Thank you for your cooperation