Thank you for
reaching out on the community and telling us about your issue. I do apologize for the issues you're having. Since you've been having the error for the last week you've already gone through some of the troubleshooting steps provided in the CC-502 error article here. If you could try the second step located on the article and see if you're able to get connected. If not we'll need to contact Quicken Support via chat or phone so we're able to collect logs and see what exactly is happening. I'll also list our hours down below so you can find a time that works best for you.
Once you get a chance to contact support let us know how it goes!
Quicken Phone Support Current Hours
Monday through Friday
5:00 am to 5:00 pm PDT
Quicken Chat Support Current Hours
Monday through Sunday