This plugin is great up until I want my users to create

This plugin is great up until I want my users to create an event, then there’s a blank page for adding an event. When I add a page with the shortcode provided for a custom page, anyone NOT an admin can’t see the page. It’s blank and the sidebars are all messed up.

Need some detailed info on this thing. I’ve checked everything. Adding events for groups doesn’t even work.