Need help

[Tutashkhia]

So I'm facing a weird issue. I have a problem with connecting this web-site.

At first I thought it was the server's fault,but it wasn't so...
I have to turn on the "Hotspot Shield" to open the web-site.

I've discovered something strange too. When I try to connect the web-site from my friend's computer,who is using the same internet service,I cannot connect from his computer too.When I contacted the staff they couldn't connect too,and said that it wasn't their fault and couldn't change anything...

But

I tried to connect the web-site from another friend's computer,who is using a different internet service,and I succeeded in connecting disco.

Has anyone experienced anything similar? Or what do you advice,since the staff cannot do anything with this?