Bug with Vile Familiars

After complete warlock q http://db.valkyrie-wow.org/?quest=1485
I can`t take next q http://db.valkyrie-wow.org/?quest=1499 wrong race, i`m undead, i think it`s not right.
I can`t take next q http://db.valkyrie-wow.org/?quest=1499 wrong race, i`m undead, i think it`s not right.