I suppose it's due to one of the recipes introduced by https://mods.factorio.com/mod/SimpleCompress

4824.560 Error MainLoop.cpp:1285: Exception at tick 31081033: The mod Crafting Combinator (0.16.1) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event crafting_combinator::on_gui_checked_state_changed (ID 3)
Unknown virtual-signal name: compress-iron
stack traceback:
[C]: in function 'newindex'
__crafting_combinator/script/rc.lua:173: in function 'find_recipe'
crafting_combinator/script/rc.lua:123: in function 'update'
crafting_combinator/script/rc.lua:300: in function 'on_checked_changed'
crafting_combinator/control.lua:167: in function <crafting_combinator/control.lua:158>