I think it's conflicting with another mod which I can remove, but posting here anyway:

The mod Resource Spawner Overhaul (7.0.5) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event rso-mod::on_surface_created (ID 64)
The mod DivOresity (2.0.3) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event DivOresity::on_chunk_generated (ID 12)
DivOresity/control.lua:123: attempt to index field '?' (a nil value)
stack traceback:
DivOresity/control.lua:123: in function <DivOresity/control.lua:107>
stack traceback:
[C]: in function 'force_generate_chunk_requests'
rso-mod/control.lua:1075: in function 'spawn_starting_resources'
rso-mod/control.lua:2012: in function <rso-mod/control.lua:2000>

This doesn't looks like RSO error - it's caused by DivOresity when RSO triggers starting area generation.
I'm not sure what DivOresity is but if it changes ore generation it's most likely not compatible with RSO.

no worries, i disabled DivOresity after I left Nauvis. :)