Roboport converter crashed when pasting the activate roboport convert value from off to on.

1082.411 Error MainLoop.cpp:1142: Exception at tick 35866124: The mod Roboport Converter caused a non-recoverable error.
Please report this error to the mod author.

Error while running event Roboport_Converter::on_pre_entity_settings_pasted (ID 30)
__Roboport_Converter__/control.lua:254: attempt to index field '?' (a nil value)
stack traceback:
    __Roboport_Converter__/control.lua:254: in function <__Roboport_Converter__/control.lua:238>