Fatal error: Uncaught Error: Interface "WPMailSMTP\Admin\PageInterface" not found in /home/samipe/public_html/wp-content/plugins/wp-mail-smtp/src/Admin/ParentPageAbstract.php:12 Stack trace: #0 {main} thrown in /home/samipe/public_html/wp-content/plugins/wp-mail-smtp/src/Admin/ParentPageAbstract.php on line 12