Fatal error: Uncaught Error: Class 'ftp_base' not found in /home/refref/public_html/wp-post-to-pdf-enhanced-cache-20250414195233/wp-post-to-pdf-enhanced-cache/includes/class-ftp-sockets.php:28 Stack trace: #0 {main} thrown in /home/refref/public_html/wp-post-to-pdf-enhanced-cache-20250414195233/wp-post-to-pdf-enhanced-cache/includes/class-ftp-sockets.php on line 28