Board Thread:Administrative/@comment-61022-20161026191028/@comment-1895174-20171003070142

Anyone know why {{DEFAULTSORT: produces a giant, red warning at the bottom of the page for the pages for episodes of The Gifted (example)?

I'm not seeing this same warning on other pages, so I don't know if it has to do with the implementation of the template, the page's title, the Episode template, or something else I can't think of right now.