Fatal error: Uncaught Error: Class 'yii\web\AssetBundle' not found in /var/www/html/vendor/yiisoft/yii2-bootstrap/src/BootstrapPluginAsset.php:18 Stack trace: #0 {main} thrown in /var/www/html/vendor/yiisoft/yii2-bootstrap/src/BootstrapPluginAsset.php on line 18