Sweet Chickadee

At first this app worked well. Now, after the last three updates, the store ordering has failed completely. I can click on an item to select it, select pickup from store, and fill my cart. When I go to check out, the cart is empty and I have wasted about thirty minutes inputting a large order for nothing. I have repeatedly tried to order but the cart is invariably empty no matter what. I have reported this to my store personnel several times to no avail. I live in an isolated rural area and must travel 20 miles one way to get my supplies. I need to know that an item is or is not in stock. This