Don't know if it is, or not. If you're getting these errors after selecting the protagonist, use the console and enter h.skills = []
If it's Bernie, then, if she's NOT possessing a corpse:
ber.skills = [soulshriek, magicmissile, spiritualguardian, rejuvenatingwhispers, heal, mendingprayers, pacifistresolve, possesscorpse]
Or if she IS possessing a corpse:
ber.skills = [soulshriek, anansicurse, hasteofthedamned, manaexplosion, masochism, heal, mana_shield, possesscorpse]