After changing the php version, a 500 error is displayed instead of the store. Is virtuemart compatible with php version 7.3?
My VM 3.4.2 is working well so far, but I don't use PHP 7.3 on the production site yet.
You need to give some more information about your shop though, somewhere here is a FAQ how to ask questions in order to get proper answers.
Regards
Stefan
http://forum.virtuemart.net/index.php?topic=104795