Thread:Extension talk:Access Log/ Fatal error: Call to undefined method SpecialAccessLog

My MediaWiki is v1.24alpha, but after configuring LocalSetting.php and, I still getting the error when I access the page

Fatal error: Call to undefined method SpecialAccessLog::getLang in /home/sunjizu/www/njuscda/mediawiki/extensions/UMEduWiki/AccessLog/AccessLog.body.php on line 185