The point is: This programm ios not there to do backup and restore but to install and updates your addons and libraries!
Backup and restore not workin is a known bug, it aint fixed yet and I guess never will be fixed.
So don't use it and use the better and easier way:
Simply copy&paste the whole addons and savedvariables folder to backup and restore your addons and SV files manually.
Needed effort:
0. Logout of the game!!!
1. Open Windows Explorer via WIN+E
2. Open "live" folder (described here how to find the addons folder, 1 folder above is the live folder):
https://www.esoui.com/forums/faq.php..._howto_install
3. Mark "AddOns" and "SavedVariables" folder (press CTRL key + left click to mark several folders)
4. Press CTRL+C
5. Choose another folder where you want to paste it
6. Press CTRL+V
Done
Same the other way around for the restore.
This is effective and less effort than using Minion for it.
You are also able to zip the folders avfterwards to compress their size, like Minion does.