i just looked in the server status... it is up and running 2 Days, 1 Hours and 55 Minutes
It is what info i have about the uptime. It doesn't seem to be down earlier. Maybe it was a network problem. I will contact the company of hosting to ask if they had any downtime.
From our side 3 days now, everything seems to be stable enough. I will chekc further though for this last issue.