刚接触，安装了workerman-chat，但是服务端跑起来报错

centos,nginx,php环境下，代码都没做改动，直接上传，然后执行

php /data/chat/start.php start

Workerman start in DEBUG mode
PHP Warning:  stream_socket_server() has been disabled for security reasons in /data/chat/Workerman/Worker.php on line 1288

Warning: stream_socket_server() has been disabled for security reasons in /data/chat/Workerman/Worker.php on line 1288
PHP Fatal error:  Uncaught exception 'Exception' in /data/chat/Workerman/Worker.php:1291
Stack trace:
#0 /data/chat/Workerman/Worker.php(429): Workerman\Worker->listen()
#1 /data/chat/Workerman/Worker.php(342): Workerman\Worker::initWorkers()
#2 /data/chat/start.php(37): Workerman\Worker::runAll()
#3 {main}
  thrown in /data/chat/Workerman/Worker.php on line 1291

Fatal error: Uncaught exception 'Exception' in /data/chat/Workerman/Worker.php:1291
Stack trace:
#0 /data/chat/Workerman/Worker.php(429): Workerman\Worker->listen()
#1 /data/chat/Workerman/Worker.php(342): Workerman\Worker::initWorkers()
#2 /data/chat/start.php(37): Workerman\Worker::runAll()
#3 {main}
  thrown in /data/chat/Workerman/Worker.php on line 1291