No longer works

My son loved this app. It was worth the $5.99 for all of the videos.
Since all of the updates I can no longer access any of the locked episodes.
I even went to try and re- purchase the episodes and it says that I have already purchased and need to download. I have tried to restore the episodes several times and it says I have 0 episodes! I have deleted and installed the app several times, with no luck.
Extremely disappointed!!

Dtn0608 about Pocoyo Kids TV