Well, highest version in that series is now 2.3.4 so if upgrading on the move one might have to contend with virtual + upgrade issues (not that I know of any). In affect, the problems might be compounded.
Anyway to get moodle folder OFF the old virtual? Did you ever do a site backup that included moodle code and archive it to other location?
If either, think I'd try that first. Moving what you've got and getting it working first before upgrading might be best … others, however, might differ. Of course, if no backup, then ...
'spirit of sharing', Ken