Fatal error: Uncaught Error: Interface "Psr\Http\Message\StreamInterface" not found in /home/wwwarms/ws.arms-tools.com/websocket-server/vendor/guzzlehttp/psr7/src/AppendStream.php:14 Stack trace: #0 {main} thrown in /home/wwwarms/ws.arms-tools.com/websocket-server/vendor/guzzlehttp/psr7/src/AppendStream.php on line 14