Fatal error: Uncaught Error: Class 'Yii' not found in /var/www/html/dev/sophia_frm_ext_lib/extensions/yiibooster/widgets/TbGroupGridView.php:13 Stack trace: #0 {main} thrown in /var/www/html/dev/sophia_frm_ext_lib/extensions/yiibooster/widgets/TbGroupGridView.php on line 13