I found one that is working. I wonder if the problem are'nt those new versions. Weird is that I definately did not upgrade them manually. I guess Python3 cound be the problem here, on some systems ....
root@csrv:~# apt-get update && apt-get upgrade
Hit:1 http://ppa.launchpad.net/ondrej/php/ubuntu bionic InRelease
Hit:2 http://ro.archive.ubuntu.com/ubuntu bionic InRelease
Hit:3 http://ro.archive.ubuntu.com/ubuntu bionic-updates InRelease
Hit:4 http://ro.archive.ubuntu.com/ubuntu bionic-backports InRelease
Hit:5 http://ro.archive.ubuntu.com/ubuntu bionic-security InRelease
Reading package lists... Done
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
python3-update-manager ubuntu-advantage-tools update-manager-core
The following packages will be upgraded:
base-files distro-info-data motd-news-config update-notifier-common
4 upgraded, 0 newly installed, 0 to remove and 3 not upgraded.
Need to get 242 kB of archives.
After this operation, 1,024 B of additional disk space will be used.
Do you want to continue? [Y/n]