Intuit needs to provide a patch for QB Mac 2019.  They broke it and they need to fix it.  They did not provide users of this version any warning that it would break and not be compatible.  They did not provide any information on any of their versions prior to the release of Sonoma.  They have the Sonoma beta and releases candidates up to the day of release and should have let people know that upgrading would be a disaster.  They make enough money to have a software team that evaluates these issues for their customers.