patrol AI stopped working on 1.17.1 after Build 3771

https://paste.denizenscript.com/View/87822
Massive error log just in a few seconds

[21:59:35] [Server thread/WARN]: [MythicMobs] Failed to construct AI pathfinder patrol
[21:59:35] [Server thread/WARN]: java.lang.reflect.InvocationTargetExceptionjava.lang.reflect.InvocationTargetException

Also there is something wrong with placeholders or something after Build 3769 (see log bottom)

[21:59:45] [Craft Scheduler Thread - 7 - MythicMobs/FATAL]: Thread Craft Scheduler Thread - 7 - MythicMobs failed main thread check: Chunk getEntities call
java.lang.Throwable: null