Hello @HiwasseeVol
Thank you for reaching out on the community and telling us about your issue. I do apologize for the issue you're having. I do recall some other users experiencing some similar issues with Regions bank as well but in any case to start off here I would recommend taking a look at the article down below to start off.
https://www.quicken.com/support/error-when-using-quicken-online-services-ol-293-or-ol-294
Once you're able to try out a couple of steps listed in the article let us know if you're able to get through if not we'll see what we can try next.
Thanks,
Quicken Francisco