[quote user="Tam��s Nagy"]I have tried the above mentioned hack (uninstalled libudev0:i386 and created a symlink) but AppCenter is _still_ blank.[/quote]
The hack was meant as workaround for the fact that libudev0 isn't available in recent debian and ubuntu versions, having been entirely replaced by libudev1. Since your distro still had a real libudev0 package, this workaround doesn't apply. Your issue must be a different one, though my first guess would be some other shared library it can't find.
It's annoying that App Center just gives a blank screen instead of reporting an error. Maybe the error ends up in some log somewhere, but if so, I don't know where.