QuickBooks for MAC Supportsignifies that a system is unable to build some much-needed records which also leads to hampering the creation of essential accounts in the software. Although, this kind of error is not the fault of customers but internal complexity. So, you can manually try below steps:
Try to login using Admin Credentials and close other tabs
Recheck your Point of Sale and Financial preferences
If at all these steps do not work and the problem persists, you can directly call us on QuickBooks Customer Service (855)552-2543 and get a workable solution to resolve this error.