Error HTTP 401 Streaming API


Good afternoon, I have an application that collects data API Streaming and receipt json to store, but from this day, I return an HTTP 401 not autoizada mistake, I tried regenerating the calves of the application and not working.
until yesterday it was working properly, what happened?
I Twitter4J use the library

the exact code that returns me twitter is:

 [Fri July 31 19:51:48 GMT + 01: 00 2015] 401: Authentication credentials ( Were missing or incorrect. Ensure That You Have September consumer valid key / secret, access token / secret, and the system clock is in sync.

   <html> \ n <head> \ n <meta http-equiv = "Content-Type" content = "text / html; charset = utf-8" /> \ n <title> Error 401 Unauthorized </ title>
 </ head>
 <h2> HTTP ERROR: 401 </ h2>
 <p> Problem Accessing '/1.1/statuses/filter.json'. Reason:
 <pre> Unauthorized </ pre>
 </ body>
 </ html>

Greetings and thank you