Solved the issue temporarily for me:
1. Had to manually download and install older packages:
sudo dpkg -i libpam-systemd_204-5ubuntu20.25_amd64.deb libsystemd-daemon0_204-5ubuntu20.25_amd64.deb systemd-services_204-5ubuntu20.25_amd64.deb
2. Put those versions on hold:
sudo apt-mark hold systemd-services libsystemd-daemon0 libpam-systemd
3. Removed completely 'cgmanager':
sudo apt-get purge cgmanager
4. Restarted
Solved the issue temporarily for me:
1. Had to manually download and install older packages:
sudo dpkg -i libpam- systemd_ 204-5ubuntu20. 25_amd64. deb libsystemd- daemon0_ 204-5ubuntu20. 25_amd64. deb systemd- services_ 204-5ubuntu20. 25_amd64. deb
2. Put those versions on hold:
sudo apt-mark hold systemd-services libsystemd-daemon0 libpam-systemd
3. Removed completely 'cgmanager':
sudo apt-get purge cgmanager
4. Restarted