If the file doctor didn’t fix the problem when restoring your file, you may search for other backup copies of your company file to restore it. You can also search for .adr files to help you recover your damaged data.

For more details about using ADR files, please check out this article: 

Resolution for 'ADR files issue: 'Opening external files' available: Yes.

The ADR files 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 ADR files issue yourself by looking for a resolution described in the article. If it is a complex ADR files issue or you are unable to solve the issue, you may contact us by clicking here or by using other ADR files support options.

For more information about resolving issues related to ADR files in Quickbooks/QBO or to get support for the issue 'Opening external files', click the link below: