Hello Cem Bagdatli,

As far as I see from browser console on your site, connection is ok now and you may send messages, but Jot Server still doesn't allow to distribute messages between members because your site's IP is not included to allowed Ips list for the server. I mean seems like you have added site's IP to "domain" option of the server's config.json, but your site's IP is 127.0.0.1 and thus your are blocked. 

Please add 127.0.0.1 IP to domain's list and restart the server and then everything should work fine.