cp setgroup cjMason royalty
14:18:13 [INFO] Set group of player cjMason to royalty
14:18:13 [WARNING] Unexpected exception while parsing console command
org.bukkit.command.CommandException: Unhandled exception executing command 'cp' in plugin DroxPerms v0.2.0-escapecraft-SNAPSHOT
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:41)
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:163)
at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:353)
at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:349)
at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:499)
at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:478)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:374)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:417)
Caused by: java.lang.NullPointerException
at de.hydrox.bukkit.DroxPerms.DroxPerms.refreshPlayer(DroxPerms.java:138)
at de.hydrox.bukkit.DroxPerms.DroxPlayerCommands.onCommand(DroxPlayerCommands.java:105)
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:39)
... 7 more

This bug is fixed in develop, you can ignore it. It is DroxPerms trying to set bukkit-Permissions on an offline player. The DroxPerms permissions itself get set properly.