Predis\Connection\ConnectionException: Connection refused [tcp://127.0.0.1:6379]
    #0 /data/esg_v2.com/vendor/predis/predis/src/Connection/StreamConnection.php(128): Predis\Connection\AbstractConnection->onConnectionError()
    #1 /data/esg_v2.com/vendor/predis/predis/src/Connection/StreamConnection.php(178): Predis\Connection\StreamConnection->createStreamSocket()
    #2 /data/esg_v2.com/vendor/predis/predis/src/Connection/StreamConnection.php(100): Predis\Connection\StreamConnection->tcpStreamInitializer()
    #3 /data/esg_v2.com/vendor/predis/predis/src/Connection/AbstractConnection.php(81): Predis\Connection\StreamConnection->createResource()
    #4 /data/esg_v2.com/vendor/predis/predis/src/Connection/StreamConnection.php(258): Predis\Connection\AbstractConnection->connect()
    #5 /data/esg_v2.com/vendor/predis/predis/src/Connection/AbstractConnection.php(180): Predis\Connection\StreamConnection->connect()
    #6 /data/esg_v2.com/vendor/predis/predis/src/Connection/StreamConnection.php(288): Predis\Connection\AbstractConnection->getResource()
    #7 /data/esg_v2.com/vendor/predis/predis/src/Connection/StreamConnection.php(394): Predis\Connection\StreamConnection->write()
    #8 /data/esg_v2.com/vendor/predis/predis/src/Connection/AbstractConnection.php(110): Predis\Connection\StreamConnection->writeRequest()
    #9 /data/esg_v2.com/vendor/predis/predis/src/Client.php(331): Predis\Connection\AbstractConnection->executeCommand()
    #10 /data/esg_v2.com/vendor/predis/predis/src/Client.php(314): Predis\Client->executeCommand()
    #11 /data/esg_v2.com/app/libs/Redis.php(72): Predis\Client->__call()
    #12 /data/esg_v2.com/app/libs/Session.php(38): app\libs\Redis::exists()
    #13 /data/esg_v2.com/app/libs/Session.php(108): app\libs\Session::getId()
    #14 /data/esg_v2.com/app/service/controller/Code.php(23): app\libs\Session::set()
    #15 [internal function]: app\service\controller\Code->indexAction()
    #16 /data/esg_v2.com/vendor/wj008/beacon/core/Route.php(631): ReflectionMethod->invokeArgs()
    #17 /data/esg_v2.com/vendor/wj008/beacon/core/Route.php(744): beacon\Route::runMethod()
    #18 /data/esg_v2.com/www/index.php(63): beacon\Route::run()
    #19 {main}