After I set up Letsencrypt certificate in Goautodial box, pointed Apache and Kamalio to it (edited /etc/httpd/conf.d/ssl.conf and /etc/kamalio/tls.conf respectively), restarted the services with
service httpd restart
service kamalio restart
I tried to log in to dialer but when I clicked Login to Dialer absolutely nothing happens. No error, the button doesnt work so an agent cannot login to dialer.