Is the file in the trashcan? This is what the stack trace is showing:
7 QuickBooks 2019 0x000000010a3fdb30 FileIsInTheTrash + 114
QuickBooks is supposed to warn you if the file is in the trash but I recall their being a bug in that. Look in your trash can - if there is a QuickBooks file in there drag it out to your desktop (don't delete it - it may be your most recent file!) Then launch QuickBooks while holding down the option key. This prevents it from trying to open the last used file. Then use File->Open menu to navigate to the file.
