The mod Helmod: Assistant for planning your factory (2.0.12) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event helmod::on_init()
__helmod__/selector/RecipeSelector.lua:56: bad argument #1 of 2 to 'pairs' (table expected, got nil)
stack traceback:
	[C]: in function 'pairs'
	__helmod__/selector/RecipeSelector.lua:56: in function 'appendGroups'
	__helmod__/selector/RecipeSelector.lua:112: in function 'updateGroups'
	__helmod__/selector/AbstractSelector.lua:372: in function 'prepare'
	__helmod__/controller/Controller.lua:137: in function 'on_init'
	__helmod__/controller/EventController.lua:101: in function <__helmod__/controller/EventController.lua:99>