My iPhoto book says that I have unedited text, but I can't find it. How can I search for it and find it in my iPhoto scrapbook?

I am using iPhoto on a MacBook air, Yosemite operating system. I tried to order a photo book I have made, but there is a warning stating that I have unedited text, which I think means the nonsense text that comes up when you highlight a text block. I cannot find this unedited text that they say I have. How can I find it in my book and eliminate it? Thanks.