Hi Habibur,
I am glad you reached out. There’s a wide variety of reasons why you might be unable to get PayPal Donations connected correctly. Some of those reasons we can solve, and some are things that PayPal needs to solve, but I’m here to help you as completely as I possibly can.
The first thing you should do is confirm that you do not have GiveWP in “Test Mode.” If GiveWP is in test mode, it will attempt to connect PayPal Donations to the PayPal sandbox instead of your live PayPal account. In live mode, GiveWP connects to your live PayPal account. You can disable test mode by going to Donations > Settings > Payment Gateways.
If you still have trouble connecting to PayPal, it’s possible something is cached in your browser. Some GiveWP users have had success by logging into their WordPress site in an incognito window and then connecting to PayPal there. After you make the connection incognito, you should be fine moving forward.
If neither of those two things gets you connected, then most likely there’s an issue with your PayPal account and we want to get you connected with PayPal directly to resolve it. We created this intake form to give you more details about this problem and for you to get in touch with PayPal directly. Please make sure you complete the form as completely as possible: https://givewp.com/paypal-onboarding-reports/
The form on that page sends an email directly to PayPal, to a team that we have been told is aware of any issues, and can walk you through connecting. We’re here to help as much as we can, but ultimately they’ll have to help if none of the steps above resolve things.
As a last resort, if all else fails, I’d recommend using a different payment gateway, if possible. My personal favorite is Stripe.