I installed the latest version of FlaggedRevs on my wiki which is 1.25.1. When I go and accept a revision on an editable page it says No Such Special Page. I'm not sure what I did wrong or what I need to change.
Topic on Extension talk:FlaggedRevs
Do you see the special page in "Special:SpecialPages" on your wiki?
Have the same problem with MediaWiki 1.25.3 and FlaggedRevs REL1_25 2015-06-16T21:07:19. I can't see anything suspicious in the logs, and reviewing works, but the special pages related to FlaggedRevs have disappeared.
I have found the cause of that problem: some extensions cannot create special pages if inside LocalSettings.php $wgGroupPermissions['*']['read'] = false;
is set. so not working on private wiki.
btw i have same problem on 1.26.2 (latest stable)