Welcome to the Community space, Lindria.
We appreciate you letting us know about your banking situation, and we want to ensure you can get through this as soon as possible. In QuickBooks Online (QBO), when you get the Error 105 prompt, it usually means there's an issue or an ongoing update on your bank's end. You'll want to go to your bank's website to see any possible notifications or if they're doing some maintenance.
If there's no ongoing maintenance or notifications on your bank's website, we'd recommend contacting our Customer Care Team. This way, they can check your account in a secure environment and conduct further investigation to determine the root cause of this issue. See this page for more details: How and when can I contact QuickBooks Online support?
Furthermore, here are some articles to help you manage bank transactions, reconcile an account, and ensure your data remains accurate inside QBO:
If you need further assistance managing your bank transactions inside QuickBooks or have any additional queries related to the program. Feel free to visit us anytime so we can help you right away. Stay safe!
