Yii-User-Management Module Is Not Working

I downloaded github.com/thyseus/yii-user-management this module and installed as per steps given in that.

Now I logged in to admin using username/password : admin/admin

I logged in successfully.

But when I am trying to access


It says

Error 403

You are not authorized to perform this action.

If I access url localhost/yiiusrmgnt/index.php?r=user/user/login

it redirects me on localhost/yiiusrmgnt/index.php?r=user/auth

and page shows so many errors :

Trying to get property of non-object


Please help me to resolve this.