BeaconDeactivatedEvent called during chunk unloads

java.lang.IllegalStateException: Cannot update ticket level while unloading chunks or updating entity manager
	at io.papermc.paper.chunk.system.scheduling.ChunkHolderManager.processTicketUpdates(ChunkHolderManager.java:932) ~[paper-1.19.2.jar:git-Paper-307]
	at io.papermc.paper.chunk.system.scheduling.ChunkHolderManager.processTicketUpdates(ChunkHolderManager.java:919) ~[paper-1.19.2.jar:git-Paper-307]
	at io.papermc.paper.chunk.system.scheduling.ChunkTaskScheduler.scheduleTickingState(ChunkTaskScheduler.java:293) ~[paper-1.19.2.jar:git-Paper-307]
	at io.papermc.paper.chunk.system.scheduling.ChunkTaskScheduler.scheduleChunkLoad(ChunkTaskScheduler.java:399) ~[paper-1.19.2.jar:git-Paper-307]
	at net.minecraft.server.level.ServerChunkCache.getChunkFutureMainThread(ServerChunkCache.java:533) ~[?:?]
	at net.minecraft.server.level.ServerChunkCache.getChunk(ServerChunkCache.java:440) ~[?:?]
	at net.minecraft.world.level.Level.getChunk(Level.java:502) ~[?:?]
	at net.minecraft.world.level.Level.getBlockState(Level.java:780) ~[?:?]
	at org.bukkit.craftbukkit.v1_19_R1.block.CraftBlock.getType(CraftBlock.java:227) ~[paper-1.19.2.jar:git-Paper-307]
	at io.papermc.paper.event.block.BeaconDeactivatedEvent.getBeacon(BeaconDeactivatedEvent.java:30) ~[paper-api-1.19.2-R0.1-SNAPSHOT.jar:?]
	at com.togiko.minecraft.plugins.beaconPlugin.events.ModifiedBeacon.onBeaconDeactivate(ModifiedBeacon.java:95) ~[minecraft-beacon-plugin-1.0.0.jar:?]
	at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor4.execute(Unknown Source) ~[?:?]
	at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:77) ~[paper-api-1.19.2-R0.1-SNAPSHOT.jar:?]
	at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:80) ~[paper-api-1.19.2-R0.1-SNAPSHOT.jar:git-Paper-307]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[paper-api-1.19.2-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:670) ~[paper-api-1.19.2-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.event.Event.callEvent(Event.java:45) ~[paper-api-1.19.2-R0.1-SNAPSHOT.jar:?]
	at net.minecraft.world.level.block.entity.BeaconBlockEntity.setRemoved(BeaconBlockEntity.java:281) ~[?:?]
	at java.util.HashMap$Values.forEach(HashMap.java:1065) ~[?:?]
	at net.minecraft.world.level.chunk.LevelChunk.clearAllBlockEntities(LevelChunk.java:1156) ~[?:?]
	at net.minecraft.server.level.ServerLevel.unload(ServerLevel.java:1520) ~[?:?]
	at io.papermc.paper.chunk.system.scheduling.NewChunkHolder.unloadStage2(NewChunkHolder.java:821) ~[paper-1.19.2.jar:git-Paper-307]
	at io.papermc.paper.chunk.system.scheduling.ChunkHolderManager.processUnloads(ChunkHolderManager.java:874) ~[paper-1.19.2.jar:git-Paper-307]
	at net.minecraft.server.level.ChunkMap.processUnloads(ChunkMap.java:630) ~[paper-1.19.2.jar:git-Paper-307]
	at net.minecraft.server.level.ChunkMap.tick(ChunkMap.java:618) ~[paper-1.19.2.jar:git-Paper-307]
	at net.minecraft.server.level.ServerChunkCache.tick(ServerChunkCache.java:654) ~[?:?]
	at net.minecraft.server.level.ServerLevel.tick(ServerLevel.java:686) ~[?:?]
	at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1535) ~[paper-1.19.2.jar:git-Paper-307]
	at net.minecraft.server.dedicated.DedicatedServer.tickChildren(DedicatedServer.java:446) ~[paper-1.19.2.jar:git-Paper-307]
	at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1397) ~[paper-1.19.2.jar:git-Paper-307]
	at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1173) ~[paper-1.19.2.jar:git-Paper-307]
	at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:305) ~[paper-1.19.2.jar:git-Paper-307]
	at java.lang.Thread.run(Thread.java:833) ~[?:?]

@EventHandler
    public void onBeaconDeactivate(BeaconDeactivatedEvent event) {
        Main.log("deactivated beacon: " + event);
        Beacon beacon = event.getBeacon();
        if (beacon == null) {
            Block block = event.getBlock();
            if (block.getType().equals(Material.BEACON)) {
                beacon = (Beacon) block.getState();
         ....
    }

Created issue manually because templates suck for this; but, this event should probably be improved so that it's not firing during chunk unload

Start with io/papermc/paper/event/block/BeaconDeactivatedEvent.java and the BeaconBlockEntity.setRemoved call shown in the stack trace, then trace how chunk unloads reach LevelChunk.clearAllBlockEntities. Determine the intended event behavior during unload and add coverage for the unload path, with completion defined by avoiding the ticket-level exception while preserving normal beacon deactivation behavior.