I had incorrectly set up factions.csv. I fixed that, and now I have a new error:
39308 [Thread-5] ERROR com.fs.starfarer.combat.D - java.lang.NullPointerException
java.lang.NullPointerException
at com.fs.starfarer.campaign.CircularOrbit.advance(Unknown Source)
at com.fs.starfarer.campaign.StarSystem.autogenerateHyperspaceJumpPoints(Unknown Source)
at data.scripts.world.systems.Quavar.generate(Quavar.java:83)
at data.scripts.world.HutharGen.generate(HutharGen.java:32)
at data.scripts.HModPlugin.initHuthar(HModPlugin.java:21)
at data.scripts.HModPlugin.onNewGame(HModPlugin.java:30)
at com.fs.starfarer.campaign.save.CampaignGameManager.o00000(Unknown Source)
at com.fs.starfarer.title.OoOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO.dialogDismissed(Unknown Source)
at com.fs.starfarer.ui.do.dismiss(Unknown Source)
at com.fs.starfarer.ui.impl.O0oO.dismiss(Unknown Source)
at com.fs.starfarer.campaign.save.O0oO.actionPerformed(Unknown Source)
at com.fs.starfarer.ui.thisnew.super(Unknown Source)
at com.fs.starfarer.ui.H.processInput(Unknown Source)
at com.fs.starfarer.ui.V.o00000(Unknown Source)
at com.fs.starfarer.new.Òôo000(Unknown Source)
at com.fs.oOOO.oOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO.Ò00000(Unknown Source)
at com.fs.starfarer.combat.D.o00000(Unknown Source)
at com.fs.starfarer.StarfarerLauncher$2.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
This time the line in question is
system.autogenerateHyperspaceJumpPoints(true, true);