Fatal error: Uncaught Error: Class "yii\test\ActiveFixture" not found in /var/www/html/_old/vendor/azbuco/yii2-user/tests/fixtures/UserFixture.php:5 Stack trace: #0 {main} thrown in /var/www/html/_old/vendor/azbuco/yii2-user/tests/fixtures/UserFixture.php on line 5