Plugin is "missing the required plugin unknown"

Can you share your log so we can see which plugin is missing

Quote from WicHenery

It makes sense that why it doesn't exist.

This is the required plugin: https://github.com/JorelAli/1.…nd-API/releases/tag/v2.3a

does this work for other plugins that have the same problem?

Quote from Mixelmaster8

does this work for other plugins that have the same problem?

No. That's only the case for the plugin you're using, which is specifying a plugin that is not on Spigot or Bukkit so it can't be added into Aternos. The only solution would be to remove the BlockShufflePlugin from your server.

I am having the same problem for the Nicknamer+ plugin