This page is not avilable after entering domain name in search bar

Hello community! 1.I’ve made a droplet on ubuntu 14.04 x64. Made all the steps: https://www.digitalocean.com/community/tutorials/how-to-set-up-a-host-name-with-digitalocean changed root password, installed Vesta using Putty, my os is win 7. Domain name succsessfully landed on hosting DNS servers. After this when i type my ip adress into search bar i see: default.domain. When i type my domain name i see: This page is not avilable. But tor browser and http://onlineproxyfree.com/ displays it. I’ve cleaned all the cookies in browsers chrome and IE. Also cleaned local DNS cache. Restarted router, dir link setting are normal. I can’t ping my website from ms-dos panel, but can do it using http://ping.eu/. I checked my network, turned off brandmauer still nothing. I’m asking your professional advice, what may be a reason and resolve? 2.Beside this i’ve installed Wordpress using FileZilla, (i couldn’t see my website in browser neither before nor after Wordpress installation) and when i use /wp-login.php in tor browser - i come to WP. But after clicking on display my page i see the only page with the name of my domain. So any changes in WP doesn’t appear, i can see them only by typing /wp-index.php. What may be a cause of this? Sorry for content, i haven’t sleep more then 24h. And i really appreciate any help you can provide! Regards, Sergej.