Fatal error: Uncaught Error: Class "yii\grid\Column" not found in /mnt/disk1/hosted/cuadro_mando/vendor/yiisoft/yii2/grid/CheckboxColumn.php:43 Stack trace: #0 {main} thrown in /mnt/disk1/hosted/cuadro_mando/vendor/yiisoft/yii2/grid/CheckboxColumn.php on line 43