Board Thread:In-Editor Help Assistance/@comment-107.150.23.254-20190917161001/@comment-366087-20190917203230

"Closed wiki" is used for all closed wikis.

"Not a valid wiki" is often a link/url problem. Either it is wrong (95% of the time), or rarely, a temporary issue with a server (2-3%). Perhaps either in maintenance or connection glitch. Check the url and or try again a bit later.