Friend, how could you have been given the second trial if you didn't complete the first one, which involved the cursed artifact in Jharkendar, in the small valley behind the Library of Architects? Until you complete the first trial, you simply won't be able to earn more karma for killing enemy servants or turning in dark signs to Vatras; there will be a threshold. Also, because of this, they simply won't be able to give you a second test.