Landlord Bug

[17:51:36] [Server thread/WARN]: java.lang.ClassNotFoundException: net/minecraft/server/v1_7_R4/PacketPlayOutWorldParticles
[17:51:36] [Server thread/WARN]: 	at java.lang.Class.forName0(Native Method)
[17:51:36] [Server thread/WARN]: 	at java.lang.Class.forName(Class.java:186)
[17:51:36] [Server thread/WARN]: 	at com.jcdesimp.landlord.DarkBladee12.ParticleAPI.ReflectionHandler.getClass(ReflectionHandler.java:25)
[17:51:36] [Server thread/WARN]: 	at com.jcdesimp.landlord.DarkBladee12.ParticleAPI.PacketType.getPacket(PacketType.java:121)
[17:51:36] [Server thread/WARN]: 	at com.jcdesimp.landlord.DarkBladee12.ParticleAPI.ParticleEffect.<clinit>(ParticleEffect.java:216)
[17:51:36] [Server thread/WARN]: 	at com.jcdesimp.landlord.LandlordCommandExecutor.landlord_claim(LandlordCommandExecutor.java:332)
[17:51:36] [Server thread/WARN]: 	at com.jcdesimp.landlord.LandlordCommandExecutor.onCommand(LandlordCommandExecutor.java:61)
[17:51:36] [Server thread/WARN]: 	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
[17:51:36] [Server thread/WARN]: 	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:181)
[17:51:36] [Server thread/WARN]: 	at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchCommand(CraftServer.java:717)
[17:51:36] [Server thread/WARN]: 	at net.minecraft.network.NetHandlerPlayServer.func_147361_d(NetHandlerPlayServer.java:1325)
[17:51:36] [Server thread/WARN]: 	at net.minecraft.network.NetHandlerPlayServer.func_147354_a(NetHandlerPlayServer.java:1107)
[17:51:36] [Server thread/WARN]: 	at net.minecraft.network.play.client.C01PacketChatMessage.func_148833_a(C01PacketChatMessage.java:38)
[17:51:36] [Server thread/WARN]: 	at net.minecraft.network.play.client.C01PacketChatMessage.func_148833_a(C01PacketChatMessage.java:53)
[17:51:36] [Server thread/WARN]: 	at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:244)
[17:51:36] [Server thread/WARN]: 	at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:173)
[17:51:36] [Server thread/WARN]: 	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:980)
[17:51:36] [Server thread/WARN]: 	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:430)
[17:51:36] [Server thread/WARN]: 	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:798)
[17:51:36] [Server thread/WARN]: 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:658)
[17:51:36] [Server thread/WARN]: 	at java.lang.Thread.run(Thread.java:722)
[17:51:36] [Server thread/ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'landlord' in plugin Landlord v1.2
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[PluginCommand.class:git-Cauldron-Reloaded-1.7.10-1.1370.01.0]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:181) ~[SimpleCommandMap.class:git-Cauldron-Reloaded-1.7.10-1.1370.01.0]
	at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchCommand(CraftServer.java:717) ~[CraftServer.class:git-Cauldron-Reloaded-1.7.10-1.1370.01.0]
	at net.minecraft.network.NetHandlerPlayServer.func_147361_d(NetHandlerPlayServer.java:1325) [nh.class:?]
	at net.minecraft.network.NetHandlerPlayServer.func_147354_a(NetHandlerPlayServer.java:1107) [nh.class:?]
	at net.minecraft.network.play.client.C01PacketChatMessage.func_148833_a(C01PacketChatMessage.java:38) [ir.class:?]
	at net.minecraft.network.play.client.C01PacketChatMessage.func_148833_a(C01PacketChatMessage.java:53) [ir.class:?]
	at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:244) [ej.class:?]
	at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:173) [nc.class:?]
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:980) [MinecraftServer.class:?]
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:430) [lt.class:?]
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:798) [MinecraftServer.class:?]
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:658) [MinecraftServer.class:?]
	at java.lang.Thread.run(Thread.java:722) [?:1.7.0]
Caused by: com.jcdesimp.landlord.DarkBladee12.ParticleAPI.ParticleEffect$PacketInstantiationException: Packet instantiation failed
	at com.jcdesimp.landlord.DarkBladee12.ParticleAPI.ParticleEffect.instantiatePacket(ParticleEffect.java:289) ~[?:?]
	at com.jcdesimp.landlord.DarkBladee12.ParticleAPI.ParticleEffect.display(ParticleEffect.java:387) ~[?:?]
	at com.jcdesimp.landlord.persistantData.OwnedLand.highlightLand(OwnedLand.java:430) ~[?:?]
	at com.jcdesimp.landlord.persistantData.OwnedLand.highlightLand(OwnedLand.java:406) ~[?:?]
	at com.jcdesimp.landlord.LandlordCommandExecutor.landlord_claim(LandlordCommandExecutor.java:332) ~[?:?]
	at com.jcdesimp.landlord.LandlordCommandExecutor.onCommand(LandlordCommandExecutor.java:61) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[PluginCommand.class:git-Cauldron-Reloaded-1.7.10-1.1370.01.0]
	... 13 more
Caused by: java.lang.NullPointerException
	at com.jcdesimp.landlord.DarkBladee12.ParticleAPI.ParticleEffect.instantiatePacket(ParticleEffect.java:287) ~[?:?]
	at com.jcdesimp.landlord.DarkBladee12.ParticleAPI.ParticleEffect.display(ParticleEffect.java:387) ~[?:?]
	at com.jcdesimp.landlord.persistantData.OwnedLand.highlightLand(OwnedLand.java:430) ~[?:?]
	at com.jcdesimp.landlord.persistantData.OwnedLand.highlightLand(OwnedLand.java:406) ~[?:?]
	at com.jcdesimp.landlord.LandlordCommandExecutor.landlord_claim(LandlordCommandExecutor.java:332) ~[?:?]
	at com.jcdesimp.landlord.LandlordCommandExecutor.onCommand(LandlordCommandExecutor.java:61) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[PluginCommand.class:git-Cauldron-Reloaded-1.7.10-1.1370.01.0]
	... 13 more