PayPal Checkout integration fails to connect.

2. Last card- pay pal payment 

I when connecting it connects paypal , login is completed but when goes back to card it says connection failed.

Your help is appreciated 

Please try using a different browser to connect it again, make sure to click on the Save button: https://www.jotform.com/help/542-How-to-Integrate-Form-to-PayPal-Checkout

Let us know if the issue persists.