Most likely you need to replace the loading belt. It’s stretched.
You can get one on eBay....
https://www.ebay.com/itm/175730011496?m ... media=COPY...and you replace it by doing this.
Open up the player and pop out the tray. Then unplug the power.Remove the clamper assembly as shown.Remove the old belt as noted here....., ...and then clean the plastic gears the belt touches w/ a swab & alcohol to remove any residual dirt or worn rubber, let it dry, and then install the new belt.The player should work again as if it was brand new.