Im not sure if this is a bug or not because ive knocked out the executioner, etc etc but nothing too severe to make everyone hate me and not talk to me. How do i increase the reputation/fix it? ive read that going to prison helps.
I’ve also knocked him out due to a really bizarre executioner just sprinting at me for a fight for no reason when I went up to his place at night.
I would like to know how to increase it too 
I punched a guard and surrendered and went to prison for 10 days, rep is now 16 but I can trade again
Correct going to jail does help, but its mainly to reset most things in the town. Others ways is doing quests, activities, giving more money to merchants when haggling, going to bandit camps and clearing them out. What you don’t want to be caught doing is knocking people out,killing, or stealing. Just one of those things even ifs its one person, your rep goes negative real fast.