When I turn on the mod (it wasn't enabled before) for a previously created world, an error appears:
Error while running event control-your-rods::on_init()
Invalid surface name: Surface names must not be blank and must be unique.
stack traceback:
[C]: in function 'create_surface'
control-your-rods/scripts/camera-surface.lua:16: in function 'create_camera_surface'
control-your-rods/scripts/camera-surface.lua:27: in function 'setup'
control-your-rods/control.lua:20: in function <control-your-rods/control.lua:15>
