WrappedWatchableObject cannot be cast to java.lang.Byte

[Ste3et]

Hello i code at the time on my FurniturePlugin but it have the problem to get a byte from WrappedDataWatcher

Here is my file: https://github.com/Ste3et/FurnitureLib/blob/master/src/de/Ste3et_C0st/FurnitureLib/main/entity/fArmorStand.java

Here is my error code:

[17:05:38 WARN]: java.lang.ClassCastException: com.comphenix.protocol.wrappers.WrappedWatchableObject cannot be cast to java.lang.Byte
[17:05:38 WARN]: at com.comphenix.protocol.wrappers.WrappedDataWatcher.getByte(WrappedDataWatcher.java:235)
[17:05:38 WARN]: at de.Ste3et_C0st.FurnitureLib.main.entity.fArmorStand.setBasePlate(fArmorStand.java:111)
[17:05:38 WARN]: at de.Ste3et_C0st.FurnitureLib.Database.DeSerializer.Deserialze(DeSerializer.java:82)
[17:05:38 WARN]: at de.Ste3et_C0st.FurnitureLib.Database.Database.loadAll(Database.java:90)
[17:05:38 WARN]: at de.Ste3et_C0st.FurnitureLib.Database.SQLManager.loadALL(SQLManager.java:52)
[17:05:38 WARN]: at de.Ste3et_C0st.FurnitureLib.main.FurnitureLib.onEnable(FurnitureLib.java:152)
[17:05:38 WARN]: at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:291)
[17:05:38 WARN]: at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:340)
[17:05:38 WARN]: at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405)
[17:05:38 WARN]: at org.bukkit.craftbukkit.v1_9_R1.CraftServer.loadPlugin(CraftServer.java:361)
[17:05:38 WARN]: at org.bukkit.craftbukkit.v1_9_R1.CraftServer.enablePlugins(CraftServer.java:321)
[17:05:38 WARN]: at org.bukkit.craftbukkit.v1_9_R1.CraftServer.reload(CraftServer.java:745)
[17:05:38 WARN]: at org.bukkit.Bukkit.reload(Bukkit.java:539)
[17:05:38 WARN]: at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:25)
[17:05:38 WARN]: at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141)
[17:05:38 WARN]: at org.bukkit.craftbukkit.v1_9_R1.CraftServer.dispatchCommand(CraftServer.java:645)
[17:05:38 WARN]: at org.bukkit.craftbukkit.v1_9_R1.CraftServer.dispatchServerCommand(CraftServer.java:631)
[17:05:38 WARN]: at net.minecraft.server.v1_9_R1.DedicatedServer.aL(DedicatedServer.java:438)
[17:05:38 WARN]: at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:401)
[17:05:38 WARN]: at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:660)
[17:05:38 WARN]: at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:559)
[17:05:38 WARN]: at java.lang.Thread.run(Unknown Source)

Befor you update your Protocollib it deos work but at the time i find no way to fix it.