Fatal error: Uncaught Error: Interface "Psr\Container\ContainerInterface" not found in /home/wwwarms/ws.arms-tools.com/websocket-server/vendor/symfony/service-contracts/ServiceProviderInterface.php:24 Stack trace: #0 {main} thrown in /home/wwwarms/ws.arms-tools.com/websocket-server/vendor/symfony/service-contracts/ServiceProviderInterface.php on line 24