Thanks for the report.
I wonder if the app is not properly installed?
You can check by looking in the folder /System/Library/ScriptingAdditions (use Finder Go->Go to folder)
If the file TotalSpaces.osax is not there then the installation did not go correctly.
If this is the case, I would recommend running the uninstaller from the dmg you downloaded.
Then turn SIP off, and then run the installer. Check TotalSpaces2 works, and you could also check that folder for TotalSpaces.osax. Then if everything looks good, turn SIP off.
I know it takes some time for all the rebooting, sorry about that!