Problem: When I try to add a credit card on PayPal, I get the error message:
Internal Error. We are not able to process your request. Please try again later.
On Internet Explorer this happens as soon as I start to add a credit card. On Chrome the same message happens after entering my credit card details.
Best Answer
Answering my own question, in case this helps anyone. I called Paypal for help and they solved the problem by directing me to a simpler page, which wasn't affected by whatever technical issue caused the original error: