Editing Text Boxes

So I was coming up with a title for a piece my mom for mothers day. I had added a title already, but I wasn't satisfied with it so I deleted it. Then my mom came in the room and I had to quickly save and exit the window. I just got back on, finished the song, and realized I still didn't have a title. There was nothing in the text box because I had deleted the title before closing the night before, and I tried double clicking on the box to go into edit mode like you're supposed to, but nothing happened. I can't change the title.