Thanks will (let) try. We have also run the respective cartridge through an improved cartridge validator which does additional html validation to be sure that the missing ';' does not come from an html error but haven't yet analyzed the reports.
From partners who restored the same cartridge on another Moodle installation I got the following info:
We managed to solve this problem by selecting GROUPS – NO (default is YES) when selecting setting for the import. But then we got another error that we could not resolve:
* Creating new course
o Thermodynamics (T-1)
o Category: Miscellaneous
* Creating the Restorelog.html in the course backup folder
* Creating sections
* Creating categories and questions
o Category "Quiz Bank \'Temperature - Test Your Knowledge\'"
. . .
o Category "Quiz Bank \'Internal Energy - Test Your Knowledge\'"
o Category "Quiz Bank \'Heat - Test Your Knowledge\'"
o Category "Quiz Bank \'First Law - Test Your Knowledge\'"
o Category "Quiz Bank \'Velocity Distribution - Test Your Knowledge\'"
* Copying course files.
o Files/folders: 2
* Creating scalesXML error: EntityRef: expecting ';' at line 2242
Both are apparently Moodle errors in its internal files.
Hope this helps.