User-submitted events are not submitting. The submission button hangs when pressed and doesn't submit. If the user waits long enough they get an error message reading the following:
You don't have permission to access "http://nationslug.nationbuilder.com/users/event_pages" on this server. Reference #18.3a59f180.1466560393.37ba3a8
The user has cleared cache, attempted off of multiple browsers, and has even restored the code from the page template to default. There does seem to be a caveat to this. If you submit the event without content in the event description, the user submitted event submits.
Update: this is fixed!
We are working on a fix for this!