Error Report TentThis 612

Left Click
17:21:26 [SEVERE] Could not pass event BLOCK_DAMAGE to TentThis
java.lang.NullPointerException
        at ssell.TentThis.TTSchemaLoader.renderTent(TTSchemaLoader.java:336)
        at ssell.TentThis.TentThis.buildTent(TentThis.java:400)
        at ssell.TentThis.TTBlockListener.onBlockDamage(TTBlockListener.java:39)
        at org.bukkit.plugin.java.JavaPluginLoader$23.execute(JavaPluginLoader.java:300)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:59)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:255)
        at org.bukkit.craftbukkit.event.CraftEventFactory.callBlockDamageEvent(CraftEventFactory.java:180)
        at net.minecraft.server.ItemInWorldManager.a(ItemInWorldManager.java:87)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:356)
        at net.minecraft.server.Packet14BlockDig.a(SourceFile:42)
        at net.minecraft.server.NetworkManager.a(NetworkManager.java:198)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:72)
        at net.minecraft.server.NetworkListenThread.a(SourceFile:100)
        at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:368)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:283)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:375)
Right Click

17:28:59 [SEVERE] Could not pass event PLAYER_INTERACT to TentThis
java.lang.NullPointerException
        at ssell.TentThis.TTSchemaLoader.renderTent(TTSchemaLoader.java:336)
        at ssell.TentThis.TentThis.buildTent(TentThis.java:400)
        at ssell.TentThis.TTPlayerListener.onPlayerInteract(TTPlayerListener.java:57)
        at org.bukkit.plugin.java.JavaPluginLoader$9.execute(JavaPluginLoader.java:214)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:59)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:255)
        at org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:162)
        at net.minecraft.server.ItemInWorldManager.a(ItemInWorldManager.java:207)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:447)
        at net.minecraft.server.Packet15Place.a(SourceFile:57)
        at net.minecraft.server.NetworkManager.a(NetworkManager.java:198)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:72)
        at net.minecraft.server.NetworkListenThread.a(SourceFile:100)
        at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:368)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:283)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:375)