We have replacement parts for this. The aluminum sleeve may have come loose and slid inside the carbon-fiber outer pole. We can send you a single replacement section at no cost so you can rebuild the pole yourself. All sections are the same length except one end section. The carbon-fiber sections are either 14” or 16” long, not including the plastic end piece or aluminum sleeve. You can also remove and replace the internal shock cord yourself. Here is an REI video that shows how. Alternatively, we can send you a complete new pole with all sections and shock cord for about $50.