You can try to start the services from command line or view their status:
systemctl start httpd-admin sshd
systemctl -l status httpd-admin sshd
It’s possible that some errors were logged in /var/log/messages, they could provide some clues about the cause.
Edit: I’m assuming you have NethServer 7.4
Another option, if services are already started but not responding, is to restart them.