Fatal error: Uncaught Error: Call to undefined function _deprecated_file() in /home/refref/public_html/plugins/wordfence/wp-post-to-pdf-enhanced-cache/class-smtp.php:6 Stack trace: #0 {main} thrown in /home/refref/public_html/plugins/wordfence/wp-post-to-pdf-enhanced-cache/class-smtp.php on line 6