Fatal error: Uncaught Error: Class 'Yii' not found in /home/ltdxewhd/public_html/preproduction/hooks/vendor/dektrium/yii2-user/views/mail/confirmation.php:20 Stack trace: #0 {main} thrown in /home/ltdxewhd/public_html/preproduction/hooks/vendor/dektrium/yii2-user/views/mail/confirmation.php on line 20