Don't worry, this happens. Buy it Locally is designed to help you facilitate the best possible experience here.
To start, uncheck the box that says "Confirm item is being held."
Then, write a message explaining what happened, and what you're going to do about it. Here's a model response we saw the other day:
"Hi! I'm so sorry, we just put that product on our defective shelf and our inventory hadn't updated to reflect it. Our sincere apologies! We have two other colors available in that size that we'd be happy to hold for you, or we can order the color you requested for you. Feel free to respond here, or call 504-123-4567 and ask for Jake and we'll get you taken care of!"
Finally, cancel the order to close out the order.