Idle Master Won't Run - OSX

[idlemasteruser1]

Can't remember if I'm meant to use "start" or "steam-idle" for "start" I get this message "; Error loading config file Press Enter to continue... logout Saving session... ...copying shared history... ...saving history...truncating history files... ...completed.

[Process completed]"

and for "steam-idle" I get "Wrong number of arguments logout Saving session... ...copying shared history... ...saving history...truncating history files... ...completed.

[Process completed]"

I've done the settings (steamlogin and sessionid), not sure where to go from here