Unable to proceed payment on form?

Hi, when im trying to integrate  Paypal as payment When I test it; it always show me an error message about the website encode with Paypal. Can you help me to make it work?

I made a test submission in your form and was able to have this error message:

I'm not sure if that's the same error message you have when translated, but I believe this is related to your Paypal account settings. You can check the following articles where Paypal users are also experiencing the same problem:

https://www.paypal-community.com/t5/How-to-use-PayPal-Archive/seller-only-accepts-payments-from-unencrypted-payments/td-p/12931 

https://ph.godaddy.com/help/why-is-my-paypal-account-blocking-payments-from-un-encrypted-buttons-1662 

Let us know if that works.