Doctrine\Common\Proxy\AbstractProxyFactory::getProxyDefinition(): Failed opening required '/var/www/vhosts/carrosserie-koch.ch/httpdocs/application/config/doctrine/proxies/__CG__ConcreteCoreFileStorageLocationStorageLocation.php' (include_path='/var/www/vhosts/carrosserie-koch.ch/httpdocs/concrete/vendor:.:/opt/plesk/php/7.1/share/pear')