Right away there is a stone ax (Grand Theft Auto 5)

I have a problem. I played the character for a long time. I spent all the money but didn’t want to save money and decided to create a new Persian. created, I appear, and in addition to the pistol, I have a stone ax in my inventory. I recreated and gave a Russian nickname to the Persian and not Russian. I even tried to come home to Maud, but nothing, I created Persian 4. And still there is this axe. And the quest for him to complete is unrealistic. it just doesn't show the number of people killed. But "slaughterhouse" works. Tell me what's wrong?