I try BobAngel2021 , all Mods loaded , but ever i try load Bobs Enemies , like BobAngel2021 said, it say Error on loading:

Error in assignID: technology with name "alien-research" does not exist.
Source: Bob-energy-shield-equipment-4(technology)
Must deactivate: Bobequipment (1.1.2) and angelsrefining (0.12.1)

Can you please visit the angels team on discord [https://discord.gg/jXjzdqWPJJ] or github [https://github.com/Arch666Angel/mods/issues] please, we would like to get a save and more details on this error.

When you say you are using "BobAngel2021" do you mean this mod?

https://mods.factorio.com/mod/bobangel2021

Or are you using the individual mods from Bobbingabout and the individual mods from Angel?

Dont find a "pezzawinke" or "Sergeant_Steve" on Discord

-Sergeant_Steve , yes

I've managed to reproduce this error and have logged it on GitHub.

You can work around the error by reenabling alien artifacts in mod settings.