Bank errors often occur due to syncing issues between QuickBooks Online and the bank's website, Jenny.
Could you share additional details, such as the specific bank error code, the name of your financial institution, and any troubleshooting steps you've already tried? This information will help us identify the problem more effectively.
In the meantime, we can manually refresh the connection by clicking the Update button on the Bank transactions page. After that, we can follow Steps 2 and 3 in this article to strengthen the connection between QuickBooks Online and your bank's website: Update your bank feeds and bank info.
We can manually upload your bank transactions to ensure you can manage your business without disruptions as an alternative.
Let us know if you need any further assistance. We're here to help.