I suppose that you updated this mod and not downloaded it from scractch, or maybe even when downloaded from scratch, old settings were saved.
When you get this error you should have an option to check the checkbox with text "Reset mod settings". Check that and then click restart.
After that everything should work.
This happens, because Factorio developers changed technology name from Optics to Lamp, so settings had to be changed and mod settings doesn't update automatically, so it must be done this way.
If that doesn't help notify me here, I will try to help.