About [[MediaWiki:Revcs-error-unexpected/en]]

CLOSED This issue is closed by Lokal Profil

 Done with gerrit:159459

This should read "An unexpected error happened." or "Unexpected errors happened."

In general I would also say that "occured" works better than "happened" in this case.

This extension is mostly abandoned, so it's easier if you submit patches yourself.

Thanks. Will do (using first suggestion)