WARN konsoli po otworzeniu skrzynki

Witam. Mam tak jak w temacie, wszystko jest dobrze? czy jednak może źle?.

kod skryptu:

#             Licencja - HeroseQ
#----------------------------------------------
#Zezwalam na:
#- Edytowanie kodu skryptu.
#- Używanie skryptu na serverach.
#Nie zezwalam na:
#- Podszywanie sie pod autora
#- Udostepnianie skryptu na innych forach.
#- Zmienianie licencji lub usuwanie jej.
#----------------------------------------------
 
options:
    item1: 8 diamond
    item2: 14 iron ingot
    item3: 17 tnt
    item4: 12 tnt
    item5: 8 gold ingot
    item6: 16 gold ingot
    item7: 8 diamond
    item8: 11 diamond
    item9: 10 golden apple 
    item10: 15 apple
    item11: 18 obsidian
    item12: 64 glowstone
    item13: 2 enchanted golden apple
    item14: diamond pickaxe of fortune 3
    item15: 7 diamond sword of unbreaking 2

on load:
    add {@item1} to {drop::*}
    add {@item2} to {drop::*}
    add {@item3} to {drop::*}
    add {@item4} to {drop::*}
    add {@item5} to {drop::*}
    add {@item6} to {drop::*}
    add {@item7} to {drop::*}
    add {@item8} to {drop::*}
    add {@item9} to {drop::*}
    add {@item10} to {drop::*}
    add {@item11} to {drop::*}
    add {@item12} to {drop::*}
    add {@item13} to {drop::*}
    add {@item14} to {drop::*}
    add {@item15} to {drop::*}
    stop

on mine of stone:
    chance of 0.1%:
        drop 1 chest named "&cMagiczna skrzynka" with lore "&eTa skrzynka zawiera" and "&eBardzo ciekawe nagody" 
        broadcast "&2Gracz &e%player% &2znalazł magiczną skrzynke !"

on place chest:
    if name of player's tool is "&cMagiczna skrzynka":
        player has 1 tripwire hook named "&5&lKlucz" with lore "&7Tym kluczem mozesz" and "&7otworzyc magiczna skrzynke":
            remove 1 tripwire hook named "&5&lKlucz" with lore "&7Tym kluczem mozesz" and "&7otworzyc magiczna skrzynke" from player
            remove 1 chest named "&cMagiczna skrzynka" with lore "&eTa skrzynka zawiera" and "&eBardzo ciekawe nagody" from player
            drop a random item out of {drop::*}
            send "&cZ skrzynki wypadł jakiś przedmiot !"
            broadcast "&2Gracz &e%player% &2otworzył magiczną skrzynke !"
            set event-block to air
        else:
            send "&cNie możesz użyć skrzynki nie mając klucza ! &7Możesz go zdobyc kopiąc kamień!"
            drop 1 chest named "&cMagiczna skrzynka" with lore "&eTa skrzynka zawiera" and "&eBardzo ciekawe nagody"
            set event-block to air
            
on mine of stone:
    chance of 0.1%:
        drop 1 tripwire hook named "&5&lKlucz" with lore "&7Tym kluczem mozesz" and "&7otworzyc magiczną skrzynke"
        broadcast "&2Gracz &e%player% &2znalazł klucz do magicznej skrzynki !"

Kod błędu:

[09:44:19] [Server thread/WARN]: java.lang.Exception
[09:44:19] [Server thread/WARN]: at net.minecraft.server.v1_14_R1.Chunk.setTileEntity(Chunk.java:462)
[09:44:19] [Server thread/WARN]: at net.minecraft.server.v1_14_R1.World.setTileEntity(World.java:969)
[09:44:19] [Server thread/WARN]: at net.minecraft.server.v1_14_R1.ItemStack.placeItem(ItemStack.java:228)
[09:44:19] [Server thread/WARN]: at net.minecraft.server.v1_14_R1.PlayerInteractManager.a(PlayerInteractManager.java:472)
[09:44:19] [Server thread/WARN]: at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1238)
[09:44:19] [Server thread/WARN]: at net.minecraft.server.v1_14_R1.PacketPlayInUseItem.a(PacketPlayInUseItem.java:27)
[09:44:19] [Server thread/WARN]: at net.minecraft.server.v1_14_R1.PacketPlayInUseItem.a(PacketPlayInUseItem.java:1)
[09:44:19] [Server thread/WARN]: at net.minecraft.server.v1_14_R1.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:19)
[09:44:19] [Server thread/WARN]: at net.minecraft.server.v1_14_R1.TickTask.run(SourceFile:18)
[09:44:19] [Server thread/WARN]: at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeTask(SourceFile:144)
[09:44:19] [Server thread/WARN]: at net.minecraft.server.v1_14_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23)
[09:44:19] [Server thread/WARN]: at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeNext(SourceFile:118)
[09:44:19] [Server thread/WARN]: at net.minecraft.server.v1_14_R1.MinecraftServer.aX(MinecraftServer.java:909)
[09:44:19] [Server thread/WARN]: at net.minecraft.server.v1_14_R1.MinecraftServer.executeNext(MinecraftServer.java:902)
[09:44:19] [Server thread/WARN]: at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.awaitTasks(SourceFile:127)
[09:44:19] [Server thread/WARN]: at net.minecraft.server.v1_14_R1.MinecraftServer.sleepForTick(MinecraftServer.java:886)
[09:44:19] [Server thread/WARN]: at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:819)
[09:44:19] [Server thread/WARN]: at java.base/java.lang.Thread.run(Thread.java:830)
[09:44:19] [Server thread/WARN]: Block entity invalid: minecraft:chest @ BlockPosition{x=-13, y=73, z=-3}