Exception (Invalid Configuration) 'yii\base\InvalidConfigException' with message 'Primary key of 'app\models\GalleryAlbum' can not be empty.' 

in /home/d/dkirill/release2.za-sov.ru/vendor/yiisoft/yii2/db/ActiveQuery.php:269

Stack trace:
#0 /home/d/dkirill/release2.za-sov.ru/vendor/yiisoft/yii2/db/ActiveQuery.php(222): yii\db\ActiveQuery->removeDuplicatedModels(Array)
#1 /home/d/dkirill/release2.za-sov.ru/vendor/yiisoft/yii2/db/ActiveQuery.php(302): yii\db\ActiveQuery->populate(Array)
#2 /home/d/dkirill/release2.za-sov.ru/controllers/GalleryController.php(32): yii\db\ActiveQuery->one()
#3 [internal function]: app\controllers\GalleryController->actionIndex('11')
#4 /home/d/dkirill/release2.za-sov.ru/vendor/yiisoft/yii2/base/InlineAction.php(55): call_user_func_array(Array, Array)
#5 /home/d/dkirill/release2.za-sov.ru/vendor/yiisoft/yii2/base/Controller.php(151): yii\base\InlineAction->runWithParams(Array)
#6 /home/d/dkirill/release2.za-sov.ru/vendor/yiisoft/yii2/base/Module.php(455): yii\base\Controller->runAction('index', Array)
#7 /home/d/dkirill/release2.za-sov.ru/vendor/yiisoft/yii2/web/Application.php(84): yii\base\Module->runAction('gallery/index', Array)
#8 /home/d/dkirill/release2.za-sov.ru/vendor/yiisoft/yii2/base/Application.php(375): yii\web\Application->handleRequest(Object(app\components\CityRequest))
#9 /home/d/dkirill/release2.za-sov.ru/web/index.php(13): yii\base\Application->run()
#10 {main}