Most mods that use or modify characters which use crossbows will make characters with no mesh appearance (no head nor limbs). By checking the errors I see all these errors correspond to the missing entries for crossbows.

Could you restore the Crossbows (+toothpick ammo) entries? I did it locally but have no permissions to upload the update.

By restoring these entries will not make any change to Project Kathun, these crossbows will only appear IF used by any extra mod.