When trying to select an inserter for rate in inerters the game crashes to the main menu with the following error message:

The mod Rate Calculator Classic (3.0.4) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event RateCalculatorClassic::on_player_selected_area (ID 57)
LuaEntityPrototype doesn't contain key stack.
stack traceback:
[C]: in function 'index'
__RateCalculatorClassic/scripts/inserter-calc.lua:81: in function 'inserter_calc'
RateCalculatorClassic/control.lua:189: in function <RateCalculatorClassic/control.lua:163>

Seems to be the same or a very similar bug to what nickD524 reported 4 months ago.