I get the same message but so far no one at Evernote is able to help. My issue is that I can access on my (PW protested) word doc on my Macbook Pro but will not work if I try and open this same word doc on my iphone. Never had this issue before the latest update.
Evernote was notified of this issue from me about a week ago but still no remedy. If this is not fixed soon I will need to look for a different note app.