To add Paypal to Quicken, you can contact them through their website. In QuickBooks Self Employed, we handle this by doing a browser troubleshooting steps first to check if this is cache-related issue. Let's start by using a private browser, here are the shortcuts to access:
Google Chrome: Ctrl + Shift + N
Safari: Command + Option + P
Mozilla Firefox & Internet Explorer: Ctrl + Shift + P
You have to try adding Paypal, if you can go through using a private browser. You can go back to your regular browser and clear the cache. Alternatively, you can use another browser if you cannot get through.
Do you have questions in mind? Feel free to reply to this post. I'll help you out. Take care.