Board Thread:Support Requests - Getting Started/@comment-30748814-20180303094648/@comment-27345308-20180305144926

Okay, that wiki's site JS is a mess. Looks like it was causing issues for VisualEditor a few months ago but it probably hasn't been fixed yet. Try contacting the admin who most recently worked with JS on the wiki and if they are not sure how to fix it they can contact a Staff member to help them fix it.

In the meantime, you can edit pages on that wiki by appending  at the end of the page URL when editing with VisualEditor or use another editor.