Yesterday i had made some updates
I checked "Package from APT" an have nothing stettet in the inputbox.
i had pressed the insall button.
Now, webmin uninstall it self.
i had stop this by clicking an variuos link in the right navbar.
apache was uninsalled and bind was uninstallad or corrupt.
I know it was my failed task, because i had clicked to fast.
i think this is an error that schould be watched.