Fatal error: Uncaught Error: Class "yii\base\Widget" not found in /mnt/disk1/hosted/cuadro_mando/vendor/yiisoft/yii2-bootstrap/Widget.php:17 Stack trace: #0 {main} thrown in /mnt/disk1/hosted/cuadro_mando/vendor/yiisoft/yii2-bootstrap/Widget.php on line 17