Good day, N&E'smom1. My name is Jessica Net and I'll be addressing your concern. You're maybe trying to download an application that is too large for your phone to accommodate. Do you have a memory card installed on the phone? If you want to download an application for the phone, make sure it'll fit to the remaining memory you have on the phone or purchase a memory card to expand its capacity to download more applications. Hope this helps. It's been a pleasure helping you. Have a good day.