Cross sell bundle on checkout not working

Hi, I’ve created a cross-sell bundle which I’ve placed under my checkout page. However, when I try to add the bundle to my cart it doesn’t allow me to as the error message states ‘Please select some product options before adding this product to your cart’, even though I have added the variations. Can you see why I’m unable to add this bundle please?

Also, I’d like a 20% discount to be applied when the user adds this bundle to their cart. Is the discount automatically applied to the total cost at checkout by the plugin?