Overdrive problem

iOS & iPadOS

Hello all,After recently installing iOS 9 on my iphone 4s both my Overdrive and Voice Zream Reader apps did not restore correctly. I had to delete and reinstall these apps again to get them working again but I did lose the books that I had loaded. Voice Dream is wirking fine now but Overdrive is being a little more difficult.
I am able to download ebooks without problem but I am unable to read them. It appears that I cannot navigate past the title page of the book. I have tried several books from my library with the same result each time.
If anyone can offer any suggestions to resolve this problem I would be very grateful.