iPod 5 won’t to factory reset it to b able to get in it says can’t connect it to iTunes previous owner must of connected it help

Ok so I work at goodwill and someone donated an iPod 5th generation it had a password so boss said chunk it well I kept it of course thinking I NBC puke figure it out . Yea no I can’t do much with phones and I’ve googled a lot but I can’t factory reset it because when I put it n recovery mode I get a message that says can’t connect device to computer because device was connected to a different computer by previous owner so how can I or is there another wya to factory reset it and then is there a way to b able to use it in general please help I really want to figure this thing out !?