See instructions below on how to back up your data file.
Resolution for 'account data issue: 'How can I backup my account data' available: Yes.
The account data 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 account data issue yourself by looking for a resolution described in the article. If it is a complex account data issue or you are unable to solve the issue, you may contact us by clicking here or by using other account data support options.
For more information about resolving issues related to account data in Quickbooks/QBO or to get support for the issue 'How can I backup my account data', click the link below: