How a small piece of plastic can ruin your vacation!

This summer I decided not to take a vacation away from home. I spent my days lounging with my family, my brothers, sister and my mother since we all live close. I also finally got a lot of sewing done. I made a few outfits for mom and a few for myself but while finishing up one of my last blouses I heard a terrible sound from inside my machine when I pushed the button to do a back tack, then out fell this little piece of plastic! My heart sank. I have never been without a sewing machine. I've called several repair places and some are on vacation and others that I knew of years ago are out of business. I am at my wits end, I have to get this machine fixed. Wish me luck.