after reading through many post here and on the VirtueMart forum, which are in 90% useless and a waste of time because they hardly ever reach satisfying conclusions but just break off at some stage, I played around with various possible scenarios to fix this issue myself...
As I am still working on a local host, that's the change I needed to make to fix all the issues in one hit:
The issue is related to the lines 65 to 69 in the virtuemart.cnf.php....... open the file and make the following changes
(IMPORTANT to use "http..." because WITHOUT it and only referencing "localhost...." it did NOT work for me...!!! The leading "http..." is IMPORTANT)
// these path and url definitions here are based on the Joomla! Configuration
define( 'URL', 'http:// localhost / mySite / ' );
define( 'URL', 'http:// localhost / mySite / ' );
P.S.: And I can also see now why so many posts seem to be useless...... UNLESS YOU TRICK THE SYSTEM (!!!!) I just see that the most important information, that the "http..." needs to precede the following path, is being CUT OFF / DELETED in the message and I trust that was the same with may messages/replies before..... many people try to explain but the forums/websites CUT OFF the most important part of the solution which means that the message you will often read is altered, incomplete, wrong and useless......