手机客户端免登，点击钉钉菜单中应用数次后，点击应用无法访问

手机客户端免登，点击钉钉菜单中应用数次后，点击应用无法访问，重启手机后，又恢复正常，周而复始....有人遇到跟我一样的问题吗？
代码如下：

dd.config({
            agentId : _config.agentid,
            corpId : _config.corpId,
            timeStamp : _config.timeStamp,
            nonceStr : _config.nonceStr,
            signature : _config.signature,
            jsApiList : [ 'runtime.info', 'biz.contact.choose',
                    'device.notification.confirm', 'device.notification.alert',
                    'device.notification.prompt', 'biz.ding.post',
                    'biz.util.openLink','biz.util.scan' ]
        });


dd.ready(function() {
    dd.biz.navigation.setTitle({
        title: '钉钉demo',
        onSuccess: function(data) {
        },
        onFail: function(err) {
            log.e(JSON.stringify(err));
        }
    });
//     alert('dd.ready rocks!');

    dd.runtime.info({
        onSuccess : function(info) {
            logger.e('runtime info: ' + JSON.stringify(info));
        },
        onFail : function(err) {
            logger.e('fail: ' + JSON.stringify(err));
        }
    });
    dd.ui.pullToRefresh.enable({
        onSuccess: function() {
        },
        onFail: function() {
        }
    })

    dd.biz.navigation.setMenu({
        backgroundColor : "#ADD8E6",
        items : [
            {
                id:"此处可以设置帮助",//字符串
            // "iconId":"file",//字符串，图标命名
              text:"帮助"
            }
            ,
            {
                "id":"2",
            "iconId":"photo",
              "text":"我们"
            }
            ,
            {
                "id":"3",
            "iconId":"file",
              "text":"你们"
            }
            ,
            {
                "id":"4",
            "iconId":"time",
              "text":"他们"
            }
        ],
        onSuccess: function(data) {
            alert(JSON.stringify(data));

        },
        onFail: function(err) {
            alert(JSON.stringify(err));
        }
    });


    dd.runtime.permission.requestAuthCode({
        corpId : _config.corpId,
        onSuccess : function(info) {    
            var path = 'userinfo?code=' + info.code + '&corpid='+ _config.corpId;
            //alert(path);
            $.ajax({
                url : path,
                type : 'GET',
                success : function(data, status, xhr) {
                    //通过钉钉用户的信息、找到对应的erp用户信息、然后进行登录？？？
                    location.href='auth/login!checkValid.action?loginName=aosadmin&password='+hex_md5('123');
                },
                error : function(xhr, errorType, error) {
                    logger.e("yinyien:" + _config.corpId);
                    alert(errorType + ', ' + error);
                }
            });
        },
        onFail : function(err) {
            alert('fail: ' + JSON.stringify(err));
        }
    });
});

dd.error(function(err) {
    alert('dd error: ' + JSON.stringify(err));
});