{"errorCode":1,"errorMessage":"user code exception caught","stackTrace":"errCode: -501001 resource system error | errMsg: Cannot read property 'user_info' of undefined; "}

突然这样了，大面积挂了

{"errorCode":1,"errorMessage":"user code exception caught","stackTrace":"errCode: -501001 resource system error | errMsg: system error; "}

怎么回事？