Fatal error: Uncaught RuntimeException: Failed to listen on "tcp://0.0.0.0:12345": Address already in use (EADDRINUSE) in /home/saelmobile/whatsapp.saelmobile.com/vendor/react/socket/src/TcpServer.php:184 Stack trace: #0 /home/saelmobile/whatsapp.saelmobile.com/vendor/react/socket/src/Server.php(77): React\Socket\TcpServer->__construct('tcp://0.0.0.0:1...', Object(React\EventLoop\StreamSelectLoop), Array) #1 /home/saelmobile/whatsapp.saelmobile.com/vendor/cboden/ratchet/src/Ratchet/Server/IoServer.php(59): React\Socket\Server->__construct('0.0.0.0:12345', Object(React\EventLoop\StreamSelectLoop)) #2 /home/saelmobile/whatsapp.saelmobile.com/server.php(15): Ratchet\Server\IoServer::factory(Object(Ratchet\Http\HttpServer), 12345) #3 {main} thrown in /home/saelmobile/whatsapp.saelmobile.com/vendor/react/socket/src/TcpServer.php on line 184