I understand your concern regarding receiving an error message. I'm sorry to hear that this is not a common error for everyone. I request that you try the troubleshooting steps and check if it works. Please clear the cache and cookies on your device, and if that doesn't work, try using a different device and try re-logging into your PayPal account and check.
I had the same problem till today. And the solution was to disable Dark Reader add-on for Modzilla (same for Chrome too). It's very nice add-on, saving the eyes for long work on computers, but seems it have conflict with Paypal verification system. I guess other add-ons may have the same problem, so you can disable them all before login to Paypal. Another solution for me was to login using my 2nd computer on which I don't use Dark reader. Hope this helps.
