Board Thread:Support Requests - Designing Your Wiki/@comment-25877114-20190417221113/@comment-24931587-20190417235144

According to the page's history, Omega138 did 3 edits in a row: Both the 2nd and 3rd edits created errors; you undid the 3rd edit but not the 2nd, so there's still an error.
 * 1) Added a new mislabeled field.
 * 2) Deleted the tag.
 * 3) Added two tags.

When you look at the old version before Omega138's edits, you get an error because it transcludes the current version of the template to show an example. That should fix itself after you finish reverting Omega138's edits.