Hello jpastachak,
Thanks for reaching out to us here. Welcome! Connecting your bank and credit card accounts to QuickBooks Online is a great way to update your transactions automatically, so your accounts remain accurate and up-to-date. When there's a disconnect between your financial institution and QuickBooks, it can be rather concerning.
At this time, Our Development Team is working diligently on resolving the issue with Scotiabank. Although I don't have an ETA for resolution, you can contact our Customer Care team at 1-855-253-1536 from Monday to Friday between the hours of 9 AM and 8 PM EST. They will be able to add you to the list of affected users, and set you up to receive an email notification when it's been fixed. You can also follow status updates here. In the interim, you can manually upload your transactions by following this link.
Feel free to reach out again, if you have any other questions. We would be glad to help!