I am also having a similar problem. I installed it, and it was working fine for two weeks.
Then today, after I installed some plugins, the notice popped up at the top of the screen and said that I needed to go to my "home page and save the settings, and then the message would disappear." I erroneously, I guess, deleted the text in the preset box, since I wasn't aware of what I was doing.
Now the plugin won't work at all.
I uninstalled it three times, and reloaded it, but it still won't work.
It seems like it is locked.
I try going to the home page to reset it, but the preset, pick element, and header bar with 3D and fonts is no longer there.
The only thing that displays is "font settings" or, when in a post or page - the "webforfonts" or the "F" symbol. When I click on these things, nothing happens. Again, it seems "locked."
Thanks.