I Just tried
Didn't you previously get banned?
Discord intentionally shows the generic error "The invite link is not valid or has expired" (or similar) when someone who is banned tries to join using any invite link. This is by design, it doesn't show a clear "You are banned" message in all cases (especially on mobile), so it looks exactly like an expired/invalid link.
6 days ago (+1)
Made me think, whatever happened to that dude that use come in here complaining about jaggies and sub-pixel accuracy 🤭