Cannot launch OpenBTS. Connecting to 127.0.0.1:49300... connect stream socket: Connection refused

[chegmarco1989]

Hello.

I am trying to launch OpenBTS for the first time after installation, and I get this type of error:

Connecting to 127.0.0.1:49300...
connect stream socket: Connection refused

However, as you can see below, I already launched OpenBTS with the command "sudo systemctl start openbts":

root@Cheg:/home/chegmarco/Documents# cd OpenBTS
root@Cheg:/home/chegmarco/Documents/OpenBTS# sudo systemctl start openbts
root@Cheg:/home/chegmarco/Documents/OpenBTS# sudo systemctl start smqueue
root@Cheg:/home/chegmarco/Documents/OpenBTS# sudo systemctl start sipauthserve
root@Cheg:/home/chegmarco/Documents/OpenBTS# sudo systemctl start asterisk
root@Cheg:/home/chegmarco/Documents/OpenBTS# cd dev
root@Cheg:/home/chegmarco/Documents/OpenBTS/dev# cd openbts
root@Cheg:/home/chegmarco/Documents/OpenBTS/dev/openbts# cd apps
root@Cheg:/home/chegmarco/Documents/OpenBTS/dev/openbts/apps# sudo ./OpenBTSCLI
OpenBTS Command Line Interface (CLI) utility
Copyright 2012, 2013, 2014 Range Networks, Inc.
Licensed under GPLv2.
Includes libreadline, GPLv2.
Connecting to 127.0.0.1:49300...
connect stream socket: Connection refused
Is OpenBTS running?
root@Cheg:/home/chegmarco/Documents/OpenBTS/dev/openbts/apps#

Please help me.