I'm having an issue, nothing makes my setup window open, so i can't edit my octane shaders.

I tried to trigger it through many ways, like clicking "edit on schematic".not oppening as well.
Tried deleting my CFG config file, nothing.
tried unistalling modo and plugin, even standlaone. not working.
Any idea?
I'm running MODO 801 SP3
plugin version: 2.23.2
Windows 8
Thank you very much.
Cheers!