Trouble after authorization on system

I don't know why but when I try to use djangopeople site I got many times this error:

```
{
    Message: "User: anonymous is not authorized to perform: es:ESHttpGet"
}

```
the first time it appears on the registration process and then after registration, it continues showing a few times. but if you try to reload the page several times page loads normally. I think it's some bug maybe.