[18:49:03 WARN]: [AutoSell] Task #1558 for AutoSell v1.9.3 generated an exception
java.lang.NoSuchMethodError: org.bukkit.inventory.PlayerInventory.getStorageContents()[Lorg/bukkit/inventory/ItemStack;
        at me.clip.autosell.BlockHandler.convertInventoryToBlocks(BlockHandler.java:53) ~[?:?]
        at me.clip.autosell.tasks.BlocksPlayerTask.run(BlocksPlayerTask.java:27) ~[?:?]
        at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftTask.run(CraftTask.java:71) ~[PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350) [PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:723) [PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
        at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_252]

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[18:58:14] [Server thread/INFO]: zJeePro_HD issued server command: /sellall
[18:58:14] [Server thread/ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'sellall' in plugin AutoSell v1.9.3
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
	at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:641) ~[PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
	at net.minecraft.server.v1_8_R3.PlayerConnection.handleCommand(PlayerConnection.java:1162) [PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
	at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:997) [PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
	at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:45) [PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
	at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:1) [PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
	at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_252]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_252]
	at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:715) [PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_252]
Caused by: java.lang.NoSuchMethodError: org.bukkit.inventory.PlayerInventory.getItemInOffHand()Lorg/bukkit/inventory/ItemStack;
	at me.clip.autosell.commands.SellAllCommand.onCommand(SellAllCommand.java:132) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[PrisonXNew.jar:git-Spigot-db6de12-18fbb24]
	... 15 more