2016-07-25 08:11:25: ERROR[Main]: ModError: Failed to load and run script from /home/don/edutech/bin/../mods/skin/init.lua:
2016-07-25 08:11:25: ERROR[Main]: /home/don/edutech/bin/../mods/skin/init.lua:73: Attempt to override non-existent item :
2016-07-25 08:11:25: ERROR[Main]: stack traceback:
2016-07-25 08:11:25: ERROR[Main]: 	[C]: in function 'error'
2016-07-25 08:11:25: ERROR[Main]: 	/home/don/edutech/bin/../builtin/game/register.lua:338: in function 'override_item'
2016-07-25 08:11:25: ERROR[Main]: 	/home/don/edutech/bin/../mods/skin/init.lua:73: in main chunk
2016-07-25 08:11:25: ERROR[Main]: Check debug.txt for details.