loginByHybridAuth 500 error

[nywuctuk]

In one moment working code start being NOT working))) (500 error)

I found the problem here:
YumAuthController.php:
public function loginByHybridAuth($provider) {
...
Yii::import('ext.hoauth.hybridauth.Hybrid.Auth', true);
...
}

When 'true' changed to 'false' this code start being working again. WTF!?