API Twitter issue


Hi, we have an application based on the Twitter API, but since the 14/01/14 we are experiencing problems due to upgrade of their API. Specifically we are using Phirehose Framework to retrieve Streams of certain users. However, we could not retrieve tweets as before that date. Randomly we recover certain tweets but not constantly. The error that we find to connect with Twitter is as follows:
Please we need your help to resolve this issue.
Thanks in advance