Fatal error: Uncaught TypeError: flock(): Argument #1 ($stream) must be of type resource, bool given in /var/www/vhosts/mytortenland.de/public_html/storage/modification/system/library/cache/file.php:30
Stack trace:
#0 /var/www/vhosts/mytortenland.de/public_html/storage/modification/system/library/cache/file.php(30): flock()
#1 /var/www/vhosts/mytortenland.de/public_html/storage/modification/system/library/cache.php(45): Cache\File->get()
#2 /var/www/vhosts/mytortenland.de/public_html/catalog/model/localisation/language.php(10): Cache->get()
#3 /var/www/vhosts/mytortenland.de/public_html/storage/modification/system/engine/loader.php(259): ModelLocalisationLanguage->getLanguages()
#4 /var/www/vhosts/mytortenland.de/public_html/system/engine/proxy.php(47): Loader->{closure}()
#5 /var/www/vhosts/mytortenland.de/public_html/catalog/model/tool/seo_package.php(10): Proxy->__call()
#6 /var/www/vhosts/mytortenland.de/public_html/storage/modification/system/engine/loader.php(259): ModelToolSeoPackage->hrefLang()
#7 /var/www/vhosts/mytortenland.de/public_html/system/engine/proxy.php(47): Loader->{closure}()
#8 /var/www/vhosts/mytortenland.de/public_html/catalog/controller/feed/advanced_sitemap.php(547): Proxy->__call()
#9 /var/www/vhosts/mytortenland.de/public_html/catalog/controller/feed/advanced_sitemap.php(232): ControllerFeedAdvancedSitemap->generate()
#10 /var/www/vhosts/mytortenland.de/public_html/storage/modification/system/engine/action.php(79): ControllerFeedAdvancedSitemap->product()
#11 /var/www/vhosts/mytortenland.de/public_html/storage/modification/system/engine/router.php(134): Action->execute()
#12 /var/www/vhosts/mytortenland.de/public_html/storage/modification/system/engine/router.php(123): Router->execute()
#13 /var/www/vhosts/mytortenland.de/public_html/system/framework.php(171): Router->dispatch()
#14 /var/www/vhosts/mytortenland.de/public_html/system/startup.php(104): require_once('...')
#15 /var/www/vhosts/mytortenland.de/public_html/index.php(23): start()
#16 {main}
thrown in /var/www/vhosts/mytortenland.de/public_html/storage/modification/system/library/cache/file.php on line 30