Hello en.wikibooks.beta.wmflabs.org has an error. Can you see it. Thanks!
MediaWiki internal error.
Original exception: [Yf2Iq81KlJKDQ5UpTo9ODgAAAA4] /wiki/Main_Page TypeError: Argument 1 passed to MediaWiki\Minerva\Menu\Main\DefaultMainMenuBuilder::getDiscoveryGroup() must be of the type array, null given, called in /srv/mediawiki/php-master/skins/MinervaNeue/includes/Menu/Main/MainMenuDirector.php on line 101
Backtrace:
from /srv/mediawiki/php-master/skins/MinervaNeue/includes/Menu/Main/DefaultMainMenuBuilder.php(74)
#0 /srv/mediawiki/php-master/skins/MinervaNeue/includes/Menu/Main/MainMenuDirector.php(101): MediaWiki\Minerva\Menu\Main\DefaultMainMenuBuilder->getDiscoveryGroup(NULL)
#1 /srv/mediawiki/php-master/skins/MinervaNeue/includes/Menu/Main/MainMenuDirector.php(79): MediaWiki\Minerva\Menu\Main\MainMenuDirector->buildMenu(array, array)
#2 /srv/mediawiki/php-master/skins/MinervaNeue/includes/Skins/SkinMinerva.php(134): MediaWiki\Minerva\Menu\Main\MainMenuDirector->getMenuData(array, array)
#3 /srv/mediawiki/php-master/includes/skins/SkinMustache.php(58): SkinMinerva->getTemplateData()
#4 /srv/mediawiki/php-master/includes/skins/SkinTemplate.php(147): SkinMustache->generateHTML()
#5 /srv/mediawiki/php-master/includes/OutputPage.php(2711): SkinTemplate->outputPage()
#6 /srv/mediawiki/php-master/includes/MediaWiki.php(917): OutputPage->output(boolean)
#7 /srv/mediawiki/php-master/includes/MediaWiki.php(930): MediaWiki::{closure}()
#8 /srv/mediawiki/php-master/includes/MediaWiki.php(563): MediaWiki->main()
#9 /srv/mediawiki/php-master/index.php(53): MediaWiki->run()
#10 /srv/mediawiki/php-master/index.php(46): wfIndexMain()
#11 /srv/mediawiki/w/index.php(3): require(string)
#12 {main}
Exception caught inside exception handler: [Yf2Iq81KlJKDQ5UpTo9ODgAAAA4] /wiki/Main_Page TypeError: Argument 1 passed to MediaWiki\Minerva\Menu\Main\DefaultMainMenuBuilder::getDiscoveryGroup() must be of the type array, null given, called in /srv/mediawiki/php-master/skins/MinervaNeue/includes/Menu/Main/MainMenuDirector.php on line 101
Backtrace:
from /srv/mediawiki/php-master/skins/MinervaNeue/includes/Menu/Main/DefaultMainMenuBuilder.php(74)
#0 /srv/mediawiki/php-master/skins/MinervaNeue/includes/Menu/Main/MainMenuDirector.php(101): MediaWiki\Minerva\Menu\Main\DefaultMainMenuBuilder->getDiscoveryGroup(NULL)
#1 /srv/mediawiki/php-master/skins/MinervaNeue/includes/Menu/Main/MainMenuDirector.php(79): MediaWiki\Minerva\Menu\Main\MainMenuDirector->buildMenu(array, array)
#2 /srv/mediawiki/php-master/skins/MinervaNeue/includes/Skins/SkinMinerva.php(134): MediaWiki\Minerva\Menu\Main\MainMenuDirector->getMenuData(array, array)
#3 /srv/mediawiki/php-master/includes/skins/SkinMustache.php(58): SkinMinerva->getTemplateData()
#4 /srv/mediawiki/php-master/includes/skins/SkinTemplate.php(147): SkinMustache->generateHTML()
#5 /srv/mediawiki/php-master/includes/OutputPage.php(2711): SkinTemplate->outputPage()
#6 /srv/mediawiki/php-master/includes/exception/MWExceptionRenderer.php(158): OutputPage->output()
#7 /srv/mediawiki/php-master/includes/exception/MWExceptionRenderer.php(77): MWExceptionRenderer::reportHTML(TypeError)
#8 /srv/mediawiki/php-master/includes/exception/MWExceptionHandler.php(107): MWExceptionRenderer::output(TypeError, integer)
#9 /srv/mediawiki/php-master/includes/exception/MWExceptionHandler.php(202): MWExceptionHandler::report(TypeError)
#10 /srv/mediawiki/php-master/includes/MediaWiki.php(585): MWExceptionHandler::handleException(TypeError, string)
#11 /srv/mediawiki/php-master/index.php(53): MediaWiki->run()
#12 /srv/mediawiki/php-master/index.php(46): wfIndexMain()
#13 /srv/mediawiki/w/index.php(3): require(string)
#14 {main}