Try removing the preferences file:
1. Quit QuickBooks if it is running
2. In the Finder, hold the option key down and choose Go->Library menu
3. The library window opens. Double click on the Preferences folder.
4. Drag the com.intuit.quickbooks20xx.plist file to the trash (where xx is the year of the QuickBooks version)
5. Relaunch […]
Resolution for 'comintuit.quickbooks20xx.plist file issue: 'Can’t Log into my Company File on Mac' available: Yes.
The comintuit.quickbooks20xx.plist file 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 comintuit.quickbooks20xx.plist file issue yourself by looking for a resolution described in the article. If it is a complex comintuit.quickbooks20xx.plist file issue or you are unable to solve the issue, you may contact us by clicking here or by using other comintuit.quickbooks20xx.plist file support options.
For more information about resolving issues related to comintuit.quickbooks20xx.plist file in Quickbooks/QBO or to get support for the issue 'Can’t Log into my Company File on Mac', click the link below: