Anyone here with the same error from ebay??

I was at the ebay checkout screen , wanted to pay for an item that I have bought from ebay,

when I click "continue with paypal", after entering my paypal password, this error message will always appear

"Please add a bank account to your PayPal account to complete this purchase. For further assistance, follow the steps listed in the PayPal Help Center"

Where I have already linked my credit card, add in a bank account, this error message will still apear.

Any expert can help me sort this out?

Thank a million