Fatal error: Uncaught Error: Interface "PhpParser\NodeTraverserInterface" not found in /home/wwwarms/ws.arms-tools.com/websocket-server/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php:5 Stack trace: #0 {main} thrown in /home/wwwarms/ws.arms-tools.com/websocket-server/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php on line 5