[nowwhat]

When you loose control of your server, you shouldn't wait a week.

Two words : rescue mode.
.. and find out why / what / when and correct the issue if needed..

[Stev]

Hello, I'm not able to access to my web application since 1 week ago. I try to connect via ssh, however the server does not response, and the connection time out.

If you need more info, I will give you,

Thanks,

Steve