makehumancommunity.org

ubuntu-18.04.2-desktop-amd64.iso on a Micro-SD card with persistence

404 Not Found [IP: 91.189.95.83 80]
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/makehuman-official/makehuman-11x/ubuntu bionic Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

What it says in terminal.

Thanks.

Probably I've missed the question? So I can only guess. As you pointed out the terminal is telling you the problem:

ubuntu bionic Release' does not have a Release file

There is no 11x build for bionic. You should either try this ppa: https://launchpad.net/~makehuman-offici ... -community or run from source...