My charging cable has a lump on the end of it
Okay, so I have an iPod Touch 4th Generation. I have had a lump on the cable since a month after I got it. I got it in December 2013 and it has had a lump since January. I have not had ANY problems whatsoever until just yesterday. My iPod popped up a message while I was charging it: "Charging is not supported with this accessory." So I thought it was my wall charger. It is an Insten USB Wall Charger that came in a starter kit from Walmart. But I have a car charger from the same kit. So I inspected the charger and the cable with my dad. Well, my dad said he would take my wall charger to work. Then he saw the cable and said it was "broken" because it had a lump where you insert the cable into the iPod. Is it broken beyond repair, or can I fix it, with like Duct tape or something? I do not want to have to pay money to fix it unless it is necessary. I don't want to have to send it off for inspection or anything because I use my iPod every day. Thank you SOOO much in advance.