fix: fix the error

internal/msggateway/init.go

@@ -46,9 +46,7 @@ func RunWsAndServer(rpcPort, wsPort, prometheusPort int) error {
 	netDone := make(chan error)
 	go func() {
 		err = hubServer.Start()
-		if err != nil {
+		netDone <- err
-			netDone <- err
-		}
 	}()
 	return hubServer.LongConnServer.Run(netDone)
 }

pkg/common/startrpc/start.go

@@ -152,7 +152,7 @@ func Start(
 		if err != nil {
 			return errs.Wrap(err, "shutdown err")
 		}
-		return errors.New("SIGTERM EXIT")
+		return nil
 	case <-netDone:
 		close(netDone)
 		return netErr