Fatal error: Uncaught Error: Class 'Yii' not found in /var/www/html/dev/sophia_frm_ext_lib/extensions/yiibooster/widgets/TbDatePicker.php:17 Stack trace: #0 {main} thrown in /var/www/html/dev/sophia_frm_ext_lib/extensions/yiibooster/widgets/TbDatePicker.php on line 17