I'm having problems with gantry, I'm stuck with 3.1.1 as any update to that renders my template settings page blank. I read about (mbregex) to be enable somewhere, and check that in my config is disabled. I don't know what are the requirements of gantry so I don't know what to tell my hoster what to configure php with.
I recommend you to list the full requirements for gantry to work so we don't waste our time figuring out what you already know, you are the developers right.