经常出现40001的错误

[huobaiyu]

该问题的出现一直没有发现规律，也不知道如何解决？
2016-12-25 09:49:26 DEBUG [com.github.sd4324530.fastweixin.util.NetWorkCenter.doRequest:273] - [-----------------请求成功-----------------]
2016-12-25 09:49:26 DEBUG [com.github.sd4324530.fastweixin.util.NetWorkCenter.doRequest:274] - [响应结果:]
2016-12-25 09:49:26 DEBUG [com.github.sd4324530.fastweixin.util.NetWorkCenter.doRequest:275] - [{"errcode":40001,"errmsg":"invalid credential, access_token is invalid or not latest hint: [dLTTea0566vr46!]"}]