I’ve just put up a bug fix release for Gigs Calendar. The most important fix is that your settings page should function normally now. Hurrah! Also, if you set it so that users other than your editors could access the gigs calendar, that should be working as expected now.
If your gig is not created for whatever reason (except browser compatibility) it should pop up with a little error message with a few more details. Please don’t hesitate sending me that information if it looks like it’d be helpful in explaining your problem.
I’ve got a list of bugs for future bug fixes, but those will have to wait for the next version. I wanted to get the settings page fix out as soon as possible.