Hello everybody!
I am sending this message to update the open ticket to assist in solving this problem, which I mentioned earlier.
Apparently I had done the correct configuration on all the systems I installed (4 in total), which seems to me that the browser was not building correctly the screens, but I had problems with SELinux which I had to disable.
In the end I had problems installing ZMQ which I got through this little tutorial (https://gist.github.com/icanhazstring/71d974a58d2f35e8abc8)
I would like to thank everyone for the help, especially Peter, and to say that I was able to also put the whole server in a CENTOS 7 + LAMP, separated from the Docker.
I also got a great free https certficate on the site (https://certbot.eff.org/).
I believe that with this we can close this ticket and once again thank you all!
p.s. sorry my poor english…rs