Site not working

[houssam_ballout]

hello all
when I go to www.terra.net.lb it wont open on both firefox and IE,
it gives me:
Technical Information (for support personnel)

* Background:
When the server, while acting as a gateway or proxy, contacted the upstream content server, it did not receive a timely response.

 

[terii]

Site works fine for me.

 

[houssam_ballout]

is there someway to get away of proxy or thing about that error