PayPal authorization fails

After logging in my paypal account, the dashboard opens instead of thank you popup, then the authorization failed. Could you please tell me how to fix it?

May we know if you're trying to integrate your form with PayPal?

Can you please share to us the Form in question?

Can you give us more information regarding the issue with your PayPal account?

To clarify, after the form is submitted you're not redirected to the PayPal checkout page?

We will wait for your response.