Fatal error: Uncaught Error: Interface "Psr\EventDispatcher\EventDispatcherInterface" not found in /home/telefonai/public_html/test.telefonai.eu/vendor/yiisoft/yii2-symfonymailer/src/EventDispatcherProxy.php:10 Stack trace: #0 {main} thrown in /home/telefonai/public_html/test.telefonai.eu/vendor/yiisoft/yii2-symfonymailer/src/EventDispatcherProxy.php on line 10