Here’s How to purge QuickBooks Error

You must deeply look into the root causes of the error.
1. Maybe your QuickBooks version is outdated. 2. Lack of Internet Connection. 3. In case of incorrect sign-in information. 4. Maybe connected bank server is under maintenance. 5. The account entitled with QuickBooks Online Bank is inactive. Golden Points to remember before choosing steps to resolve the error.
1. Update QuickBooks to the latest version. 2. Check your Internet Connection. 3. Make sure that your QuickBooks is in Single user mode. 4. Update your Internet Explorer. 5. Recheck your Sign-in Credentials. 6. Create a backup of your company file.
1. Open your QuickBooks, go to the Edit tab, and choose Preferences.
2. Now navigate and click on the checking option on the left side of the dashboard.
3. Now Go to Company Preference and choose Express Mode from the Bank Feed Window.
4. Finally, click Ok to confirm the changes.
(Alternative Option)
1. Open QuickBooks File Menu and choose New Company.
2. Select Express Start and now add the bank account facing problems.
3. You must set up the accounts for Bank Feeds on the new test company.
4. Finally, download bank feed transactions to test the account.