The mod Lamp Placer (1.1.2) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event lamp-placer::on_tick (ID 0)
position: 8388608.500000 is out of range
stack traceback:
[C]: in function 'can_place_entity'
lamp-placer/control.lua:85: in function 'perform_function'
lamp-placer/async.lua:210: in function 'call_perform_function'
lamp-placer/async.lua:221: in function 'tick'
lamp-placer/async.lua:251: in function 'on_tick'
lamp-placer/control.lua:115: in function <lamp-placer/control.lua:114>

Please tell me more info about this. Did you select a really big area? Any other mods present?

I have heard this happen once before when someone selected a really big area, but I don't know how big of an area it was.