EZrankslite problem

when i do /rankup it tells me An internal error occured while performing this command and when i look at the console it say this plz fix plss help mee plzz [13:24:42] [Server thread/ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'rankup' in plugin EZRanksLite vv1.6
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[minecraft_server.jar:git-Spigot-f928e7a-e91aed8]
at me.incomprehendable.dev.pwp.FakeSimpleCommandMap.dispatch(FakeSimpleCommandMap.java:98) ~[?:?]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:642) ~[minecraft_server.jar:git-Spigot-f928e7a-e91aed8]
at net.minecraft.server.v1_8_R3.PlayerConnection.handleCommand(PlayerConnection.java:1135) [minecraft_server.jar:git-Spigot-f928e7a-e91aed8]
at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:970) [minecraft_server.jar:git-Spigot-f928e7a-e91aed8]
at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:45) [minecraft_server.jar:git-Spigot-f928e7a-e91aed8]
at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:1) [minecraft_server.jar:git-Spigot-f928e7a-e91aed8]
at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [minecraft_server.jar:git-Spigot-f928e7a-e91aed8]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_92]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_92]
at net.minecraft.server.v1_8_R3.SystemUtils.a(SystemUtils.java:19) [minecraft_server.jar:git-Spigot-f928e7a-e91aed8]
at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:718) [minecraft_server.jar:git-Spigot-f928e7a-e91aed8]
at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:367) [minecraft_server.jar:git-Spigot-f928e7a-e91aed8]
at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:657) [minecraft_server.jar:git-Spigot-f928e7a-e91aed8]
at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:560) [minecraft_server.jar:git-Spigot-f928e7a-e91aed8]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_92]
Caused by: org.bukkit.command.CommandException: Unhandled exception executing command 'spawn' in plugin HubThat v4.6
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[minecraft_server.jar:git-Spigot-f928e7a-e91aed8]
at me.incomprehendable.dev.pwp.FakeSimpleCommandMap.dispatch(FakeSimpleCommandMap.java:98) ~[?:?]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:642) ~[minecraft_server.jar:git-Spigot-f928e7a-e91aed8]
at me.clip.ezrankslite.rankdata.PlayerRankupHandler.rankupPlayer(PlayerRankupHandler.java:205) ~[?:?]
at me.clip.ezrankslite.commands.RankupCommand.onCommand(RankupCommand.java:192) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[minecraft_server.jar:git-Spigot-f928e7a-e91aed8]
... 15 more
Caused by: java.lang.ClassCastException: org.bukkit.craftbukkit.v1_8_R3.command.ColouredConsoleSender cannot be cast to org.bukkit.entity.Player
at HubThat.CommandSpawn.onCommand(CommandSpawn.java:26) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[minecraft_server.jar:git-Spigot-f928e7a-e91aed8]
at me.incomprehendable.dev.pwp.FakeSimpleCommandMap.dispatch(FakeSimpleCommandMap.java:98) ~[?:?]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:642) ~[minecraft_server.jar:git-Spigot-f928e7a-e91aed8]
at me.clip.ezrankslite.rankdata.PlayerRankupHandler.rankupPlayer(PlayerRankupHandler.java:205) ~[?:?]
at me.clip.ezrankslite.commands.RankupCommand.onCommand(RankupCommand.java:192) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[minecraft_server.jar:git-Spigot-f928e7a-e91aed8]
... 15 more

oh OK seems the Plugin is the problem anyway I'll delete it and change it with rankup Plugin and it's working good thx anyway