Mix The Salt, Pepper, Paprika, Lemon Pepper, And Garlic Powder Together In A Bowl; Rub Evenly Onto All Sides Of The Chicken Breasts. Place The Seasoned Chicken Into The Bottom Of A Slow Cooker. Add The Cream Of Mushroom Soup, Sour Cream, White Wine, And Mushrooms To The Slow Cooker. Secure The Cover Onto The Slow Cooker And Cook On Low For 8 Hours.