its not fault of that mod.
When loading any map from 1.1 with larger lamps, i get that exact same crash.
AHHH
The crash isn’t from another mod — it’s because Larger Lamps 2.0 was never for Factorio 1.1.
Back then it used game.technology_prototypes in its migration code.
In 2.0 that API key no longer exists, it was removed from LuaGameScript.
Mods now have to use force.technologies and technology.prototype.effects.
That’s why when you load an old 1.1 save with Larger Lamps 2.0, you get the error.
On a clean 2.0 map it works fine, but migrating old saves isn’t supported.