Installation error on Mojave

I get the following error when attempting to launch TotalSpaces2 on my MBP running Mojave: Installation error
TotalSpaces2 failed to install correctly.
Please try again or contact support.
Plugin could not be installed, not found

Please Advise,
Thank you!

This error would occur if the plugin component couldn’t be moved to the right place (/System/Library/ScriptingAdditions/). Normally this shouldn’t happen, because if SIP is turned on then we should detect that and exit earlier than this.

Please check that SIP is turned off anyway, see instructions here:

Or try running the uninstaller from the DMG, then try installing again.