Jak zablokować

on place:
	event-block is mob spawner named "OslonaCzynna":
		set {_resp.mob} to false
		stop
	stop
on break:
	event-block is mob spawner:
		set {_resp.mob} to true
		stop
	stop
on respawn:
	event-entity is mob:
		if {_resp.mob} is false:
			cancel event
			kill event-entity
			stop
		else:
			stop
	stop

mob is not an entity type

event-entity is any mob:

spróbuj to podmienić w linijce 12

 Błąd w 12 linijce any mob is not an entity type

Nie ma linijki 27 , a w 12 spróbuj dać 

event-entity isn't player:

An on respawn event cannot be cancelled 14 linijka

on place:
	event-block is mob spawner named "OslonaCzynna":
		set {_resp.mob} to false
		stop
	stop
on break:
	event-block is mob spawner:
		set {_resp.mob} to true
		stop
	stop
on respawn:
	event-entity isn't player:
		if {_resp.mob} is false:
			kill event-entity
			stop
		else:
			stop
	stop

Ok działa dzięki!

Problem został rozwiązany.