Cannot Uninstall or Update Total Finder 16.20

I attempted to install v16.20 on Yosemite 10.10.3 and now I get the following any time the installer or uninstaller is accessed by any application, including TF

Any ieas on how to resolve this?

This looks scary. It looks to me that the font for this kind of dialogs is missing in the system.

I don’t believe this was caused by 1.6.20. It must be a coincidence that this happened in the same time frame.

To uninstall from command-line, please run this line in

sudo /Library/ScriptingAdditions/TotalFinder.osax/Contents/Resources/TotalFinder.bundle/Contents/Resources/TotalFinder\\ Uninstaller --headless

It will ask you for your admin password on command-line, that is expected.