Dropbox Issue

Beginning today, I haven't been able to fully open my Dropbox app on my iPhone 5 because of repeat pop-ups regarding connecting to iTunes for push notifications. Every time I double tap on the "okay" button to close the pop-up, another one opens, etc. thus preventing me from ever actually getting into Dropbox. I have deleted and re-installed several times, to no avail. Has anyone else had this problem?