I try to uninstall the VirtueMart Package 4.0.12 on Joomla 4.2.9. But I'm getting the error: Package Uninstall: Missing manifest file.
So what is the trick to get rid of VirtueMart.
I think the hints in this old post are still valid:
https://forum.virtuemart.net/index.php?topic=134060.0
You can also try to go the 'Tools & Migration' view and use the 'Remove VirtueMart Tables' (located at the bottom)