Posted on: December 11, 2015, 12:40:18 PM
Can you provide a link to the plugin that you are using? If the plugin isn't working, then you should probably just try a different plugin. There is nothing about the theme that would prevent a maintenance mode plugin from working, so either there's an options page that you haven't found, or it's just a poorly written plugin. It's most likely that the plugin just has an option to toggle maintenance mode and you haven't found it.