I always get this error when I try to edit a flow talk page message and switch between visual and source editor. This also happens when I try to preview the message.
Unable to transfer content: Error contacting the server for conversion between wikitext and HTML. Please check your Internet connection or try again later if the problem persists. If you still get this error please file a bug
@Masson_Thief What is the URL of your wiki? I would like to see if I get the same error. Thanks :)
@Hispano76: Judging by the most recent farmer logs, the user's wiki is https://greatestmovies.miraheze.org. That said if @Masson_Thief is unwilling to respond to the respondent's questions we cannot expect much in the form of an ellaboration.
I didn't mentioned a wiki because it happens on any wiki I tried it on, but on that wiki it happens more often. I saw it happening on
terribletvshows.miraheze.org
awfulmovies.miraheze.org
besttvshows.miraheze.org
greatestmovies.miraheze.org
awesomegames.miraheze.org
crappygames.miraheze.org
Listed from the wiki where it happened more often to the one where I saw it less.
Cannot reproduce, was probably fixed in an update.
If you still experience this error feel free to reopen the task.