Showing used peerId or playername in general errormessage

[FEARIV]

Several commands, basically to chat privately or kick/ban players require the use of a name or id. Whenever it doesn't exist (yet), you get a general error player not found. This makes it hard to see which failed when you execute multiple id/name related commands. So request: Add the used id/name to the errormessage so it's clear which used command(s) failed.