The whole shifter will need to be replaced. It won't be long before you won't be able to get it in gear. Expensive item if you go to the dealer. Best place either a local salvage yard or ebay. Your also missing the trim piece that covers the gap around the shifter and the console.
Whole shifter housing. Basically everything in your video plus the underside. And Hobo is right, youre missing a trim piece that is exacerbating the issue