Fatal error: Uncaught Error: Using $this when not in object context in /home/ltdxewhd/public_html/preproduction/hooks/vendor/mdmsoft/yii2-admin/mail/layouts/text.php:7 Stack trace: #0 {main} thrown in /home/ltdxewhd/public_html/preproduction/hooks/vendor/mdmsoft/yii2-admin/mail/layouts/text.php on line 7