Lots of Errors when using EnderDragonAliveCondition in RandomSpawns

Summary

Trying to get RandomSpawns ADD working with the new Cluster generation and I'm getting spammed with this error on server start.

Steps to reproduce

https://pastebin.com/qPDp3Pih Use this randomspawn on latest purpurmc

Current behavior

randomspawns don't work

Intended correct behavior

for randomspawns to work

Server log file

https://pastebin.com/QTsmZptC

Debug log snippet

https://pastebin.com/r2dLLuNe config-spawning.yml SpawningLimit set to -1 and using CLUSTER (Random spawns stop working completely if set to -1)

config-spawning.yml SpawningLimit set to 50 and using CLUSTER did the same exactly debug log. https://pastebin.com/Fs3ACJTv

Proposed fixes

Honestly no idea how to make randomspawns work consistently on any of the dev builds :(