I have a website hosted on Hostinger

However I am experiencing problems with my wordpress site. This is really annoying. If I understood the situation right, The server is blocking me or denying access to my own website.

When I visit the site with google chrome, it returns:

Oops! Google Chrome could not find

Same thing happens to firefox!

Firefox can't find the server

but when I do a check if my site is online and working through http://www.downforeveryoneorjustme.com/ it says that the site is working and up.

Another thing, I access the website through a proxy, both on chrome and in firefox, and t works.

Why is this? I have also recently installed the plugin Better Wp Security 5 days ago. Could the plugin have caused it? but I don't remember setting any IP's to be blocked.

Also, this happens at random times, sometimes I can access it, sometimes it fails to reach the server. I am currently developing the site live.

Was I blocked by the server for frequently refreshing the page? (duh, I'm a developer and I need to refresh to see changes.) or is this a problem with my ISP's DNS server? How can I resolve? and what are the possible fixes?

Thanks in advance!

-Jomar