Warning: filemtime(): stat failed for /var/customers/webs/vonflatow/vonflatow.de/assets/jquery/mediaelement/2.21.2/css/mediaelementplayer.min.css in system/modules/core/library/Contao/Controller.php on line 799
#0 [internal function]: __error(2, 'filemtime(): st...', '/var/customers/...', 799, Array)
#1 system/modules/core/library/Contao/Controller.php(799): filemtime('/var/customers/...')
#2 system/modules/core/classes/FrontendTemplate.php(248): Contao\Controller::replaceDynamicScriptTags('...')
#3 system/modules/core/classes/FrontendTemplate.php(94): Contao\FrontendTemplate->addToCache()
#4 system/modules/core/pages/PageRegular.php(190): Contao\FrontendTemplate->output(true)
#5 system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#6 index.php(20): Contao\FrontendIndex->run()
#7 {main}

Fatal error: Uncaught exception Exception with message File assets/jquery/mediaelement/2.21.2/css/mediaelementplayer.min.css does not exist thrown in system/modules/core/library/Contao/Combiner.php on line 134
#0 system/modules/core/library/Contao/Controller.php(802): Contao\Combiner->add('assets/jquery/m...', false, NULL)
#1 system/modules/core/classes/FrontendTemplate.php(248): Contao\Controller::replaceDynamicScriptTags('...')
#2 system/modules/core/classes/FrontendTemplate.php(94): Contao\FrontendTemplate->addToCache()
#3 system/modules/core/pages/PageRegular.php(190): Contao\FrontendTemplate->output(true)
#4 system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#5 index.php(20): Contao\FrontendIndex->run()
#6 {main}