The mod Subsurface - build beneath your base! (1.0.12) caused a non-recoverable error.
Please report this error to the mod author.
Error while running event Subsurface::on_resource_depleted (ID 28)
Unknown variable: probability-coal
stack traceback:
[C]: in function 'calculate_tile_properties'
Subsurface/scripts/resources.lua:19: in function 'place_resources'
Subsurface/control.lua:233: in function 'clear_subsurface'
Subsurface/control.lua:527: in function <Subsurface/control.lua:515>