LATELY WHENEVER I TRY TO UPVOTE A COMMENT ON THE ESTEEM APP

I get this error message:

It is not just this comment either. It's all of them.

I have bandwidth and voting power available, im pretty sure my app is up to date, and ** when i try doing it on steemit.com mobile site it WORKS **

I like using both the app and the browser because they each have unique features, but i am at my wits end with this inability to upvote!😠😠👿

ANYONE KNOW WHAT COULD BE CAUSING THIS PROBLEM???

@esteemapp could you maybe help me out?