Hello,
this mod crashes existing worlds with updated mods.
The cause is just a minor thing in "\lib\updates.lua" at line 11.
It seems to be a check, whether this mod is active.
You need to change "apm_starfall" to "apm_starfall_ldinc".
This should be it, if I didn't miss anything.
Thank you.
Edit:
It's fixed now. Thank you for the update.