I followed the instructions that appeared in Quicken when I attempted to update the paypal account. This required me to log onto my Paypal account via my browser and I had to make a new password.
Quicken gave me the double thumbs up.
But I still see a "ZZZ-PayPal OLD" error when I try to update Paypal and the error has a little button that says, "Reauthorize". Clicking that brought me a Quicken screen that had me input my password vault's password for Quicken and again, Quicken gave me the double thumbs up . . .
And it gave me the same error: