Reading package lists... Done
E: Repository 'https://download.docker.com/linux/ubuntu bionic InRelease' changed its 'Label' value from 'Docker EE' to 'Docker CE'
N: This must be accepted explicitly before updates for this repository can be applied. See apt-secure(8) manpage for details.
Refer: https://forums.docker.com/t/apt-repo-label-changed-from-ce-to-ee/82488/5
$ sudo apt-get --allow-releaseinfo-change update