Warning: mysqli::query(): (HY000/23): Out of resources when opening file './ar@002dwf_de_contao/tl_calendar_events.MYD' (Errcode: 24 - Too many open files) in system/modules/core/library/Contao/Database/Mysqli/Statement.php on line 81
#0 [internal function]: __error(2, 'mysqli::query()...', '/var/www/vhosts...', 81, Array)
#1 system/modules/core/library/Contao/Database/Mysqli/Statement.php(81): mysqli->query('SELECT tl_calen...')
#2 system/modules/core/library/Contao/Database/Statement.php(293): Contao\Database\Mysqli\Statement->execute_query()
#3 system/modules/core/library/Contao/Database/Statement.php(264): Contao\Database\Statement->query()
#4 system/modules/core/library/Contao/Model.php(1089): Contao\Database\Statement->execute(Array)
#5 system/modules/core/library/Contao/Model.php(930): Contao\Model::find(Array)
#6 system/modules/calendar_extended/models/CalendarEventsModel.php(214): Contao\Model::findOneBy(Array, Array, Array)
#7 system/modules/calendar_extended/modules/ModuleEventReader.php(98): Contao\CalendarEventsModel::findPublishedByParentAndIdOrAlias('id-2-workshop-e...', Array)
#8 system/modules/core/modules/Module.php(287): Contao\ModuleEventReader->compile()
#9 system/modules/calendar_extended/modules/ModuleEventReader.php(81): Contao\Module->generate()
#10 system/modules/core/elements/ContentModule.php(59): Contao\ModuleEventReader->generate()
#11 system/modules/core/library/Contao/Controller.php(484): Contao\ContentModule->generate()
#12 system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'main')
#13 system/modules/core/modules/Module.php(287): Contao\ModuleArticle->compile()
#14 system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#15 system/modules/core/library/Contao/Controller.php(417): Contao\ModuleArticle->generate(false)
#16 system/modules/core/library/Contao/Controller.php(277): Contao\Controller::getArticle(Object(Contao\ArticleModel), false, false, 'main')
#17 system/modules/core/pages/PageRegular.php(133): Contao\Controller::getFrontendModule('0', 'main')
#18 system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#19 index.php(20): Contao\FrontendIndex->run()
#20 {main}

Fatal error: Uncaught exception Exception with message Query error: Out of resources when opening file './ar@002dwf_de_contao/tl_calendar_events.MYD' (Errcode: 24 - Too many open files) (SELECT tl_calendar_events.*, j1.id AS pid__id, j1.tstamp AS pid__tstamp, j1.title AS pid__title, j1.jumpTo AS pid__jumpTo, j1.protected AS pid__protected, j1.groups AS pid__groups, j1.allowComments AS pid__allowComments, j1.notify AS pid__notify, j1.sortOrder AS pid__sortOrder, j1.perPage AS pid__perPage, j1.moderate AS pid__moderate, j1.bbcode AS pid__bbcode, j1.requireLogin AS pid__requireLogin, j1.disableCaptcha AS pid__disableCaptcha, j1.bg_color AS pid__bg_color, j1.fg_color AS pid__fg_color, j1.isHolidayCal AS pid__isHolidayCal, j1.allowEvents AS pid__allowEvents, j1.uniqueEvents AS pid__uniqueEvents, j2.id AS author__id, j2.tstamp AS author__tstamp, j2.username AS author__username, j2.name AS author__name, j2.email AS author__email, j2.language AS author__language, j2.backendTheme AS author__backendTheme, j2.uploader AS author__uploader, j2.showHelp AS author__showHelp, j2.thumbnails AS author__thumbnails, j2.useRTE AS author__useRTE, j2.useCE AS author__useCE, j2.password AS author__password, j2.pwChange AS author__pwChange, j2.admin AS author__admin, j2.groups AS author__groups, j2.inherit AS author__inherit, j2.modules AS author__modules, j2.themes AS author__themes, j2.pagemounts AS author__pagemounts, j2.alpty AS author__alpty, j2.filemounts AS author__filemounts, j2.fop AS author__fop, j2.forms AS author__forms, j2.formp AS author__formp, j2.disable AS author__disable, j2.start AS author__start, j2.stop AS author__stop, j2.session AS author__session, j2.dateAdded AS author__dateAdded, j2.lastLogin AS author__lastLogin, j2.currentLogin AS author__currentLogin, j2.loginCount AS author__loginCount, j2.locked AS author__locked, j2.calendars AS author__calendars, j2.calendarp AS author__calendarp, j2.calendarfeeds AS author__calendarfeeds, j2.calendarfeedp AS author__calendarfeedp, j2.dlh_googlemapss AS author__dlh_googlemapss, j2.dlh_googlemapsp AS author__dlh_googlemapsp, j2.downloadarchives AS author__downloadarchives, j2.downloadarchivep AS author__downloadarchivep, j2.faqs AS author__faqs, j2.faqp AS author__faqp, j2.gc_img_resolution AS author__gc_img_resolution, j2.gc_img_quality AS author__gc_img_quality, j2.gc_be_uploader_template AS author__gc_be_uploader_template, j2.gallery_creator AS author__gallery_creator, j2.gallery_creatorp AS author__gallery_creatorp, j2.news AS author__news, j2.newp AS author__newp, j2.newsfeeds AS author__newsfeeds, j2.newsfeedp AS author__newsfeedp, j2.newsletters AS author__newsletters, j2.newsletterp AS author__newsletterp, j2.newscategories AS author__newscategories, j2.newscategories_default AS author__newscategories_default FROM tl_calendar_events LEFT JOIN tl_calendar j1 ON tl_calendar_events.pid=j1.id LEFT JOIN tl_user j2 ON tl_calendar_events.author=j2.id WHERE (tl_calendar_events.id=0 OR tl_calendar_events.alias='id-2-workshop-evaluation') AND tl_calendar_events.pid IN(1,3,4) AND (tl_calendar_events.start='' OR tl_calendar_events.start<1534558020) AND (tl_calendar_events.stop='' OR tl_calendar_events.stop>1534558020) AND tl_calendar_events.published=1 LIMIT 0,1) thrown in system/modules/core/library/Contao/Database/Statement.php on line 295
#0 system/modules/core/library/Contao/Database/Statement.php(264): Contao\Database\Statement->query()
#1 system/modules/core/library/Contao/Model.php(1089): Contao\Database\Statement->execute(Array)
#2 system/modules/core/library/Contao/Model.php(930): Contao\Model::find(Array)
#3 system/modules/calendar_extended/models/CalendarEventsModel.php(214): Contao\Model::findOneBy(Array, Array, Array)
#4 system/modules/calendar_extended/modules/ModuleEventReader.php(98): Contao\CalendarEventsModel::findPublishedByParentAndIdOrAlias('id-2-workshop-e...', Array)
#5 system/modules/core/modules/Module.php(287): Contao\ModuleEventReader->compile()
#6 system/modules/calendar_extended/modules/ModuleEventReader.php(81): Contao\Module->generate()
#7 system/modules/core/elements/ContentModule.php(59): Contao\ModuleEventReader->generate()
#8 system/modules/core/library/Contao/Controller.php(484): Contao\ContentModule->generate()
#9 system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'main')
#10 system/modules/core/modules/Module.php(287): Contao\ModuleArticle->compile()
#11 system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#12 system/modules/core/library/Contao/Controller.php(417): Contao\ModuleArticle->generate(false)
#13 system/modules/core/library/Contao/Controller.php(277): Contao\Controller::getArticle(Object(Contao\ArticleModel), false, false, 'main')
#14 system/modules/core/pages/PageRegular.php(133): Contao\Controller::getFrontendModule('0', 'main')
#15 system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#16 index.php(20): Contao\FrontendIndex->run()
#17 {main}