It’s a new bug, see this:
Resolution for 'Broken shoelaces issue: 'Where are my chart of accounts? Broken shoelaces do not work for me.:(' available: Yes.
The Broken shoelaces 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 Broken shoelaces issue yourself by looking for a resolution described in the article. If it is a complex Broken shoelaces issue or you are unable to solve the issue, you may contact us by clicking here or by using other Broken shoelaces support options.
For more information about resolving issues related to Broken shoelaces in Quickbooks/QBO or to get support for the issue 'Where are my chart of accounts? Broken shoelaces do not work for me.:(', click the link below: