Question about addons and the source for getting them

Hello, these questions have probably been asked a million times, but how do you get your Gatherer and Every Quest addons to work? Gatherer itself seems to work, but all the databases i found for it seem to be different from in-game node locations. Every Quest doesn't work at all, although the game says the version is correct and it is successfully activated.

I tried going through other existing threads on this topic, but they are either unanswered or links are outdated, so would be nice if someone could post a source where they get their working addons/share the files directly if possible.

Apologize for such basic questions once again