[02:09:00] [Server thread/WARN]: Unexpected exception while parsing console command "joinmessage"
org.bukkit.command.CommandException: Unhandled exception executing command 'joinmessage' in plugin JoinMessage v1.0
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[spigot_server.jar:git-Spigot-2f787bd-ea28011]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[spigot_server.jar:git-Spigot-2f787bd-ea28011]
	at org.bukkit.craftbukkit.v1_8_R2.CraftServer.dispatchCommand(CraftServer.java:646) ~[spigot_server.jar:git-Spigot-2f787bd-ea28011]
	at org.bukkit.craftbukkit.v1_8_R2.CraftServer.dispatchServerCommand(CraftServer.java:632) [spigot_server.jar:git-Spigot-2f787bd-ea28011]
	at net.minecraft.server.v1_8_R2.DedicatedServer.aN(DedicatedServer.java:405) [spigot_server.jar:git-Spigot-2f787bd-ea28011]
	at net.minecraft.server.v1_8_R2.DedicatedServer.A(DedicatedServer.java:369) [spigot_server.jar:git-Spigot-2f787bd-ea28011]
	at net.minecraft.server.v1_8_R2.MinecraftServer.z(MinecraftServer.java:651) [spigot_server.jar:git-Spigot-2f787bd-ea28011]
	at net.minecraft.server.v1_8_R2.MinecraftServer.run(MinecraftServer.java:554) [spigot_server.jar:git-Spigot-2f787bd-ea28011]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_45]
Caused by: java.lang.ClassCastException: org.bukkit.craftbukkit.v1_8_R2.command.ColouredConsoleSender cannot be cast to org.bukkit.entity.Player
	at fr.azenox.JoinMessage.MainClass.onCommand(MainClass.java:182) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[spigot_server.jar:git-Spigot-2f787bd-ea28011]
	... 8 more