I get an error when I visit http://en.m.wikipedia.beta.wmflabs.org/w/index.php?search=Test%20is%20used%20by%20Selenium%20web%20driver
Error is:
Exception encountered, of type "BadMethodCallException"
[d3566207] /w/index.php?search=Test%20is%20used%20by%20Selenium%20web%20driver BadMethodCallException from line 85 of /srv/mediawiki/php-master/extensions/CirrusSearch/includes/InterwikiSearcher.php: Call to a member function get() on a non-object (NULL)
Backtrace:
#0 /srv/mediawiki/php-master/extensions/CirrusSearch/includes/CirrusSearch.php(373): CirrusSearch\InterwikiSearcher->getInterwikiResults(string)
#1 /srv/mediawiki/php-master/extensions/CirrusSearch/includes/CirrusSearch.php(126): CirrusSearch->searchTextReal(string, NULL)
#2 /srv/mediawiki/php-master/includes/specials/SpecialSearch.php(273): CirrusSearch->searchText(string)
#3 /srv/mediawiki/php-master/includes/specials/SpecialSearch.php(217): SpecialSearch->showResults(string)
#4 /srv/mediawiki/php-master/includes/specials/SpecialSearch.php(133): SpecialSearch->goResult(string)
#5 /srv/mediawiki/php-master/includes/specialpage/SpecialPage.php(407): SpecialSearch->execute(NULL)
#6 /srv/mediawiki/php-master/includes/specialpage/SpecialPageFactory.php(565): SpecialPage->run(NULL)
#7 /srv/mediawiki/php-master/includes/MediaWiki.php(282): SpecialPageFactory::executePath(Title, RequestContext)
#8 /srv/mediawiki/php-master/includes/MediaWiki.php(738): MediaWiki->performRequest()
#9 /srv/mediawiki/php-master/includes/MediaWiki.php(519): MediaWiki->main()
#10 /srv/mediawiki/php-master/index.php(43): MediaWiki->run()
#11 /srv/mediawiki/w/index.php(3): include(string)
#12 {main}