[14:22:31 INFO]: openblocks.common.PlayerInventoryStore.onPlayerDeath(PlayerInventoryStore.java:312): Storing post-mortem inventory into /home/ftp/Hitechcraft/./world/DIM-1/data/inventory-Navalnii_2018-2017-09-08_14.22.31-death-0.dat. It can be restored with command '/ob_inventory restore Navalnii_2018 Navalnii_2018-2017-09-08_14.22.31-death-0'
[14:22:31 INFO]: Navalnii_2018 tried to swim in lava
[14:22:33 ERROR]: Could not pass event PlayerRespawnEvent to Scavenger v0.5
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:338) ~[JavaPluginLoader$1.class:1.7.10-1614.58]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[RegisteredListener.class:1.7.10-1614.58]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:507) [SimplePluginManager.class:1.7.10-1614.58]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:492) [SimplePluginManager.class:1.7.10-1614.58]
        at net.minecraft.server.management.ServerConfigurationManager.respawnPlayer(ServerConfigurationManager.java:807) [oi.class:?]
        at net.minecraft.network.NetHandlerPlayServer.func_147342_a(NetHandlerPlayServer.java:1669) [nh.class:?]
        at net.minecraft.network.play.client.C16PacketClientStatus.func_148833_a(SourceFile:50) [is.class:?]
        at net.minecraft.network.play.client.C16PacketClientStatus.func_148833_a(SourceFile:8) [is.class:?]
        at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:245) [ej.class:?]
        at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:181) [nc.class:?]
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:1023) [MinecraftServer.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:432) [lt.class:?]
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:841) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:693) [MinecraftServer.class:?]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_131]
Caused by: java.lang.IllegalArgumentException: Cannot drop AIR.
        at org.apache.commons.lang.Validate.isTrue(Validate.java:136) ~[Validate.class:2.6]
        at org.bukkit.craftbukkit.v1_7_R4.CraftWorld.dropItem(CraftWorld.java:318) ~[CraftWorld.class:1.7.10-1614.58]
        at ru.mcskill.scavenger.Scavenger.restoringItems(Scavenger.java:103) ~[?:?]
        at ru.mcskill.scavenger.Scavenger.onRespawnEvent(Scavenger.java:86) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_131]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_131]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_131]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_131]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:334) ~[JavaPluginLoader$1.class:1.7.10-1614.58]
        ... 14 more