Ultimate Branding crashes after activating some modules

Hi to all,

I like a lot the Ultimate Branding plugin, but when I try to active all the modules I get a blank screen, and I have to delete the folder or rename it via ftp to get wp administration back again.

There is any way to totally uninstall the plugin so that I can reinstall it again, I do not need all the modules, just the one to edit the fronted admin bar, that was working before I tried to install all the modules toghter. Maybe there is some other plugin that conflicts (the permissions one "permit"?).