Fatal error: Uncaught Error: Class "WP_Importer" not found in /home/persiapharmacy/public_html/wp-content/plugins/back/wordpress-importer/class-wp-import.php:15 Stack trace: #0 {main} thrown in /home/persiapharmacy/public_html/wp-content/plugins/back/wordpress-importer/class-wp-import.php on line 15