java 8 not work[BUG]

[PabloDevh]

apt cache successfully updated
Yay! Openjdk8 has been successfully installed.
update-alternatives: error: alternative /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/jexec for jexec not registered; not setting
['11']

Steps to reproduce the behavior:

1. Go to 'Run a Minecraft Server on Google Colab!'
2. Click on execute
3. Scroll down to console
4. See error

Minecraft 1.12.2 forge 14.23.5.2859

[Prozoon700]

Hi @PabloDevh , don't wanting to disturb, but I think you should try the beta release of my own project, 700s MineColabs, a full remake of MineColab, with all the errors (or at least that it's what I want to do) solved and compatibility with the latest Minecraft and Forge versions.

I hope there isn't any problem on replying this and have a nice day!