13:24:28 [SEVERE] Could not pass event PlayerInteractEvent to ChestShop
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:177)
    at net.minecraft.server.ItemInWorldManager.dig(ItemInWorldManager.java:114)
    at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:546)
    at net.minecraft.server.Packet14BlockDig.handle(SourceFile:46)
    at net.minecraft.server.NetworkManager.b(NetworkManager.java:276)
    at net.minecraft.server.NetServerHandler.d(NetServerHandler.java:109)
    at net.minecraft.server.ServerConnection.b(SourceFile:35)
    at net.minecraft.server.DedicatedServerConnection.b(SourceFile:30)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:581)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:474)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:406)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NumberFormatException: For input string: "Zemlja"
    at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
    at java.lang.Long.parseLong(Long.java:438)
    at com.Acrobot.Breeze.Utils.MaterialUtil$Enchantment.getEnchantments(MaterialUtil.java:246)
    at com.Acrobot.Breeze.Utils.MaterialUtil.getEnchantments(MaterialUtil.java:229)
    at com.Acrobot.Breeze.Utils.MaterialUtil.getItem(MaterialUtil.java:182)
    at com.Acrobot.ChestShop.Shop.Shop.getShopFromSign(Shop.java:232)
    at com.Acrobot.ChestShop.Listeners.Player.PlayerInteract.onPlayerInteract(PlayerInteract.java:106)
    at sun.reflect.GeneratedMethodAccessor63.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:616)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 16 more