[MyWarp] The command 'warp invite SomeOfflinePlayerWhoWasBeforeOnServer testwarp' could not be executed.
me.taylorkelly.mywarp.internal.intake.InvocationCommandException: java.lang.reflect.InvocationTargetException
    at me.taylorkelly.mywarp.internal.intake.parametric.handler.ExceptionConverterHelper.convert(ExceptionConverterHelper.java:89) ~[mywarp-bukkit-3.0-SNAPSHOT-all.jar:?]
    at me.taylorkelly.mywarp.internal.intake.parametric.AbstractParametricCallable.call(AbstractParametricCallable.java:227) ~[mywarp-bukkit-3.0-SNAPSHOT-all.jar:?]
    at me.taylorkelly.mywarp.internal.intake.dispatcher.SimpleDispatcher.execute(SimpleDispatcher.java:192) ~[mywarp-bukkit-3.0-SNAPSHOT-all.jar:?]
    at me.taylorkelly.mywarp.internal.intake.dispatcher.SimpleDispatcher.call(SimpleDispatcher.java:175) ~[mywarp-bukkit-3.0-SNAPSHOT-all.jar:?]
    at me.taylorkelly.mywarp.internal.intake.dispatcher.SimpleDispatcher.execute(SimpleDispatcher.java:192) ~[mywarp-bukkit-3.0-SNAPSHOT-all.jar:?]
    at me.taylorkelly.mywarp.internal.intake.dispatcher.SimpleDispatcher.call(SimpleDispatcher.java:175) ~[mywarp-bukkit-3.0-SNAPSHOT-all.jar:?]
    at me.taylorkelly.mywarp.command.CommandHandler.callCommand(CommandHandler.java:202) [mywarp-bukkit-3.0-SNAPSHOT-all.jar:?]
    at me.taylorkelly.mywarp.bukkit.MyWarpPlugin.onCommand(MyWarpPlugin.java:194) [mywarp-bukkit-3.0-SNAPSHOT-all.jar:?]
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) [PluginCommand.class:1.7.10-1614.54]
    at com.earth2me.essentials.Essentials.onCommandEssentials(Essentials.java:417) [Essentials.jar:?]
    at com.earth2me.essentials.Essentials.onCommand(Essentials.java:402) [Essentials.jar:?]
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) [PluginCommand.class:1.7.10-1614.54]
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:181) [SimpleCommandMap.class:1.7.10-1614.54]
    at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchCommand(CraftServer.java:717) [CraftServer.class:1.7.10-1614.54]
    at net.minecraft.network.NetHandlerPlayServer.func_147361_d(NetHandlerPlayServer.java:1329) [nh.class:?]
    at net.minecraft.network.NetHandlerPlayServer.func_147354_a(NetHandlerPlayServer.java:1103) [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:245) [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:1013) [MinecraftServer.class:?]
    at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:431) [lt.class:?]
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:831) [MinecraftServer.class:?]
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:683) [MinecraftServer.class:?]
    at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_91]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_91]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_91]
    at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_91]
    at me.taylorkelly.mywarp.internal.intake.parametric.handler.ExceptionConverterHelper$ExceptionHandler.invoke(ExceptionConverterHelper.java:124) ~[mywarp-bukkit-3.0-SNAPSHOT-all.jar:?]
    at me.taylorkelly.mywarp.internal.intake.parametric.handler.ExceptionConverterHelper.convert(ExceptionConverterHelper.java:84) ~[mywarp-bukkit-3.0-SNAPSHOT-all.jar:?]
    ... 24 more
Caused by: java.lang.NullPointerException
    at me.taylorkelly.mywarp.internal.intake.parametric.handler.ExceptionConverterHelper.convert(ExceptionConverterHelper.java:80) ~[mywarp-bukkit-3.0-SNAPSHOT-all.jar:?]
    at me.taylorkelly.mywarp.command.ExceptionConverter.convert(ExceptionConverter.java:92) ~[mywarp-bukkit-3.0-SNAPSHOT-all.jar:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_91]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_91]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_91]
    at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_91]
    at me.taylorkelly.mywarp.internal.intake.parametric.handler.ExceptionConverterHelper$ExceptionHandler.invoke(ExceptionConverterHelper.java:124) ~[mywarp-bukkit-3.0-SNAPSHOT-all.jar:?]
    at me.taylorkelly.mywarp.internal.intake.parametric.handler.ExceptionConverterHelper.convert(ExceptionConverterHelper.java:84) ~[mywarp-bukkit-3.0-SNAPSHOT-all.jar:?]
    ... 24 more