@Annoyed2
Did you buy the phone recently? If yes, there might be a number of pending updates released and you'll have to install them one by one.
Alternatively, you can perform a software repair using Xperia Companion. This will do a clean installation of the latest firmware and will also wipe your internal memory. Don't forget to backup using Xperia Companion, but preferably without adding apps or settings to the backup.
