@a_5mith said:
sudo apt-get install -y redis-server
thanks for you all your help @a_5mith
It was a problem installing Redis, nothing to do with NodeBB. I forgot to install tcl8.5 for a propper redis installation in debian.
I hope this help for future related problem, you can see how proper install redis following these steps:
https://www.digitalocean.com/community/tutorials/how-to-install-and-use-redis
