Lemmy.sdf.org is where my main is hosted, but they’re currently down (as is their pixelfed instance)

It’s not just you / a regional block.

Honestly, most communities are pretty small at the moment - I would start your own, and if you’re super successful and the mod load gets too much, I’m sure you’d find others willing to volunteer to help, if not outright take over moderation duties.

It’s Lemmy World’s tokens being invalidated (because of the back) that’s causing the issue, not Liftoff (source: I had the same issues with Connect)

Clearing your app cache, and signing out and back in, ought to solve it.