Locked out of Ipod Touch

I have an Ipod Touch 4th generation with 32gb, I got it a few years ago and I lost it and long story short, it got broken and the screen didn't work. I could use it anymore so I just left it. My family wants to use it again so they fixed the screen and everything but the problem is that I have no clue what the passcode is since I haven't used it in years. We also had a house fire so its primary computer no longer exists. How do I get into my ipod?