Executando server1<br />
<b>Fatal error</b>:  Uncaught RuntimeException: Failed to listen on &quot;tcp://0.0.0.0:9980&quot;: Address already in use in /home/dom/www/websocket-demo/vendor/react/socket/src/TcpServer.php:165
Stack trace:
#0 /home/dom/www/websocket-demo/vendor/react/socket/src/Server.php(36): React\Socket\TcpServer-&gt;__construct()
#1 /home/dom/www/websocket-demo/vendor/cboden/ratchet/src/Ratchet/App.php(77): React\Socket\Server-&gt;__construct()
#2 /home/dom/www/websocket-demo/server.php(9): Ratchet\App-&gt;__construct()
#3 {main}
  thrown in <b>/home/dom/www/websocket-demo/vendor/react/socket/src/TcpServer.php</b> on line <b>165</b><br />