Suggestion

[MassiveLag]

Hello, This plugin is amazing!

But could you add like it gives you a map in the inventory with the code.
And maybe add redis to it, plugin messaging is slow.

[astei]

The map with the code was always in there, but due to a bug it didn't work with newer versions of Minecraft. This is fixed.

What makes you think plugin messaging is slow? It's just fine for transmitting small session-specific data, as MCAuthenticator does. Adding Redis doesn't do much but tick off a check box without adding substantial benefit to our users.