Intuit employees have posted here that Intuit is aware of the problem and it will be fixed in an update on or before June 25 (barring problems).

Resolution for 'barring problems issue: 'My custom reports are all missing. I need them back.' available: Yes.

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

For more information about resolving issues related to barring problems in Quickbooks/QBO or to get support for the issue 'My custom reports are all missing. I need them back.', click the link below: