我们的网站上有一个讨论链接，可以将用户导航到LinkedIn讨论。
几天前工作正常，现在又出现了401错误。请帮助。
我得到的错误日志是 -
java.io.IOException: Server returned HTTP response code: 401 for URL: http://api.linkedin.com/v1/groups/4844082: (id,name,site-group-url,small-logo-url,large-logo-url)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1436)
at com.insideup.web.AdvertiserDashBoardMultiActionController.getGroupInfoById(AdvertiserDashBoardMultiActionController.java:842)
at com.insideup.web.AdvertiserDashBoardMultiActionController.getLatestDicussion(AdvertiserDashBoardMultiActionController.java:714)
at com.insideup.web.AdvertiserDashBoardMultiActionController.showDiscussionPage(AdvertiserDashBoardMultiActionController.java:628)