FWIW I have just updated to Sonoma 4.1 that was released today.  My 2019 MacDesktop soffware is now working and performing as usual without problems.  It appears that Apple's tweak/bug fix to their software has fixed the bug that was causing 2019 to crash.  Mine MBDT 2019 is working just fine now since the update. Invoicing, register,  etc. are all working as before for me. Running on an M2-Macbook air.