Why can’t I sell my tickets?

Hello! During presale I got a ticket for the Arlington date of tour but my dad got one also in a better spot, so I tried to sell my ticket but it said “Unable to sell”. I tried waiting till after general sale but it still won’t let me. I was wondering if anyone else had this problem or knew what I could do to fix it because the insane price of the ticket is putting some stress on my bank account 😭