For the app I must REBUY all my magazines

Today I updated the application and I had a sad surprise. All journals are not purchased. All of them! I bought all the magazines from July last year and the system lost the information.
I tried to delete and reinstall the application, but to no avail. I have a nice "buy" in every magazine.
I have an iPad with iOS 4.3

darthpelo about WIRED Magazine, v1.6