Didn’t use program awhile all my locations tags are gone 
I Am on windows 11 desktop. Don’t know what to say, luckily there weren’t many, but i don’t trust this program now, can you make backups to export your data?
You haven’t lost your tags because they stick to the file names or in the sidecar files. You probably lost the tag library, but you can easily rebuild it by scanning the folders with tagged files. You can make also backups of the tag library for the menu:
Which was your last used version of TagSpaces, before the upgrade?