Try running the company file on a new(er) PC?  Does the error occur on all PC’s?  You can also

  1. Un-Install (or Repair) your QB installation files [[Control Panel >> Programs & Features] or perform a Windows Search for: Add or Remove Programs]
  2. check your QB.EXE Compatibility Settings
  3. rename a .ND file […]

Resolution for 'Compatibility Settings issue: 'ERROR CODES' available: Yes.

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

For more information about resolving issues related to Compatibility Settings in Quickbooks/QBO or to get support for the issue 'ERROR CODES', click the link below: