Errors with Feedly

the design of the application is great, and the reason that make me buy this app is the support of Feedly. but I have some of the problem:
- the sync with feedly is not right (if I read something it will not update in feedly account)
- it keeps showing to me this error message (The data couldn’t be read because it isn’t in the correct format.)
- I contact the devlpoer with no answer until now

I will give the app 5 stars if it fully support Feedly.

Said AlRiyami about ReadKit