Immortal Lord Descends to Earth: Where Have My Merits Gone?

Luo Fan: "Sir, I am wronged!" City Lord: "You still dare to quibble? Put the prisoner in jail!" Luo Fan became a saint and finally became an Immortal Lord. One time, he got drunk and took the blame for the Immortal Lord. He wanted to use magic to clear his grievances, but the merit book showed that he could not use magic if he had negative merit points, and he would be deprived of his immortal status if he lost 100 points of merit. Looking at his own merit score of -1, he complained wildly: Brother, don't play with me. Is this magic still allowed to be used? When can I go back to this fairyland?