Please try the suggested troubleshooting steps in this article: http://support.quickbooks.intuit.com/support/articles/SLN97547.

If the error continues to occur, please give us a call so we can investigate further.

You can contact us using this link: https://help.quickbooks.intuit.com/en_US/contact.

  1. Select QuickBooks for Windows.
  2. Select the version of your QuickBooks.
  3. Select a topic.
  4. Click on the Phone button.

Resolution for '0 error issue: 'I have a QBB file from an older version of QB (2007 or 2009); QB 2017 and File Doctor will not open this file saying -6123,0 error – nothing works to open it – help!' available: Yes.

The 0 error issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the 0 error issue yourself by looking for a resolution described in the article. If it is a complex 0 error issue or you are unable to solve the issue, you may contact us by clicking here or by using other 0 error support options.

For more information about resolving issues related to 0 error in Quickbooks/QBO or to get support for the issue 'I have a QBB file from an older version of QB (2007 or 2009); QB 2017 and File Doctor will not open this file saying -6123,0 error – nothing works to open it – help!', click the link below: