TotalFinder not opening in MacOs 10.15.6

Only recently TotalFinder stop working when I restarted. Why? What do I do to resolve it?

If I have to reinstall do I have to reset SiP?

Also, have set it to restart when I restart the laptop. Never does. Is that resolved in a later version?

So manually launching /Applications/TotalFinder.app works?

Please double-check that you have TotalFinder.app in your Login Startup Items:
https://totalfinder.binaryage.com/installation#mark-totalfinder-in-login-startup-items