Fatal error: Uncaught Error: Class 'Symfony\Component\Yaml\Parser' not found in phar:///srv/customers/arbeitsschutz-experts/websites/default/engine/Shopware/Plugins/Community/Frontend/jtlconnector/connector.phar/vendor/symfony/yaml/Yaml.php:59 Stack trace: #0 /srv/customers/arbeitsschutz-experts/websites/default/engine/Shopware/Plugins/Community/Frontend/jtlconnector/Bootstrap.php(55): Symfony\Component\Yaml\Yaml::parseFile('/srv/customers/...') #1 /srv/customers/arbeitsschutz-experts/websites/default/engine/Shopware/Plugins/Community/Frontend/jtlconnector/Bootstrap.php(61): Shopware_Plugins_Frontend_jtlconnector_Bootstrap->getVersion() #2 /srv/customers/arbeitsschutz-experts/websites/default/engine/Shopware/Components/Plugin/Bootstrap.php(75): Shopware_Plugins_Frontend_jtlconnector_Bootstrap->getInfo() #3 /srv/customers/arbeitsschutz-experts/websites/default/engine/Shopware/Plugins/Community/Frontend/jtlconnector/Bootstrap.php(36): Shopware_Components_Plugin_Bootstrap->__construct('jtlconnector', Object(Enlight_Config)) in phar:///srv/customers/arbeitsschutz-experts/websites/default/engine/Shopware/Plugins/Community/Frontend/jtlconnector/connector.phar/vendor/symfony/yaml/Yaml.php on line 59