Landlord error

[08:59:24] [Server thread/INFO]: Cattysaurus issued server command: /land unclaim
[08:59:24] [Server thread/ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'land' in plugin Landlord v1.2
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[PluginCommand.class:git-Cauldron-MCPC-Plus-1.7.10-1.1236.06.212]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:181) ~[SimpleCommandMap.class:git-Cauldron-MCPC-Plus-1.7.10-1.1236.06.212]
	at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchCommand(CraftServer.java:717) ~[CraftServer.class:git-Cauldron-MCPC-Plus-1.7.10-1.1236.06.212]
	at net.minecraft.network.NetHandlerPlayServer.func_147361_d(NetHandlerPlayServer.java:1350) [nh.class:?]
	at net.minecraft.network.NetHandlerPlayServer.func_147354_a(NetHandlerPlayServer.java:1132) [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:423) [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:745) [?:1.7.0_75]
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_unclaim(LandlordCommandExecutor.java:426) ~[?:?]
	at com.jcdesimp.landlord.LandlordCommandExecutor.onCommand(LandlordCommandExecutor.java:66) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[PluginCommand.class:git-Cauldron-MCPC-Plus-1.7.10-1.1236.06.212]
	... 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_unclaim(LandlordCommandExecutor.java:426) ~[?:?]
	at com.jcdesimp.landlord.LandlordCommandExecutor.onCommand(LandlordCommandExecutor.java:66) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[PluginCommand.class:git-Cauldron-MCPC-Plus-1.7.10-1.1236.06.212]
	... 13 more