The new docker version will not start my ha. I searched now on the forum and found following solution:
sudo apt remove docker-ce docker-ce-cli
sudo apt autoremove --purge -y
sudo reboot
and install it again with an older version and stay with this:
sudo apt install docker-ce-cli=5:19.03.14~3-0~raspbian-buster
sudo apt install docker-ce=5:19.03.14~3-0~raspbian-buster
sudo apt-mark hold docker-ce docker-ce-cli containerd.io
sudo reboot