Colocall.net fell the whole

Something happened to the popular hosting provider Colocall.net.

Today at 14:30 our site fell and I wanted to think that the server just decided to reboot, but I noticed a strange thing:
- homepage www.colocall.net is not available
- multichannel support for calls is not responding.

Someone know what could happen?
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Status: before support can not be reached.