It seems there is a malfunction in the database when updating from 1.3.3 that prevents it from fetching statistics from AdSense.
To fix this issue: Please delete the current app from your iPhone and reinstall DuoSense from the App Store.
Thank you for using DuoSense and if you have any other questions, let us know in the comments or by e-mail.
We are sorry for any inconvenience.
Update: We have now uploaded version 188.8.131.52 which addresses this issue. This will probably take another 7 days to get approved though.