@SLBowman 

QBD 2019 is outdated and I am not sure they will release any patches any longer. Consider immediately installing the trial version of QBD 2022 and/or 2023 and using the workaround to get it running on Sonoma. You may have time to consider the option of whether to purchase a new subscription license for QBD 2024 this week OR run a trial version of QB Desktop Windows for good on Parallels OR convert your data to QB Online or another cloud based accounting app.

Another option, explore this workaround if you upgraded from Ventura

https://www.youtube.com/watch?v=QiOQqaa0t0E