Title: Export PDF not working Last modified: May 16, 2019 --- # Export PDF not working * Resolved [expia](https://wordpress.org/support/users/expia/) * (@expia) * [6 years, 11 months ago](https://wordpress.org/support/topic/export-pdf-not-working/) * Export PDF not working in admin.Working fine on my staging but on live Export PDF issue. I am using WordPress 5.1.1 and PHP 7.2. Advanced CF7 DB Version 1.6.1 - This topic was modified 6 years, 11 months ago by [expia](https://wordpress.org/support/users/expia/). - This topic was modified 6 years, 11 months ago by [expia](https://wordpress.org/support/users/expia/). Viewing 2 replies - 1 through 2 (of 2 total) * Thread Starter [expia](https://wordpress.org/support/users/expia/) * (@expia) * [6 years, 11 months ago](https://wordpress.org/support/topic/export-pdf-not-working/#post-11541524) * While Exporting PDF getting following Fatal error.. * Fatal error: Uncaught Error: Class ‘DOMDocument’ not found in /var/www/html/wp- content/plugins/advanced-cf7-db/admin/pdfgenerate/dompdf/src/Dompdf.php:488 Stack trace: #0 /var/www/html/wp-content/plugins/advanced-cf7-db/admin/class-advanced- cf7-db-admin.php(1312): Dompdf\Dompdf->loadHtml(‘vsz_cf7_save_setting_callback(”) #3 /var/www/ html/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array) # 4 /var/www/html/wp-includes/plugin.php(465): WP_Hook->do_action(Array) #5 /var/ www/html/wp-admin/admin.php(169): do_action(‘admin_init’) #6 {main} thrown in/ var/www/html/wp-content/plugins/advanced-cf7-db/admin/pdfgenerate/dompdf/src/ Dompdf.php on line 488 * Thread Starter [expia](https://wordpress.org/support/users/expia/) * (@expia) * [6 years, 11 months ago](https://wordpress.org/support/topic/export-pdf-not-working/#post-11542814) * After debugging found following solution. Try following commands. sudo yum install php-xml sudo yum install php-dom sudo yum install php-mbstring * sudo systemctl restart httpd sudo service httpd restart sudo systemctl restart php-fpm * In most cases php-xml and systemctl restart httpd will resolved issue but in my case i have tried all commands. * My issue specific to AWS server if it is local or other then need to install only php-xml and Apache restart. * Hope my solution help others. - This reply was modified 6 years, 11 months ago by [expia](https://wordpress.org/support/users/expia/). Viewing 2 replies - 1 through 2 (of 2 total) The topic ‘Export PDF not working’ is closed to new replies. * ![](https://ps.w.org/advanced-cf7-db/assets/icon-256x256.jpg?rev=1696186) * [Advanced Contact form 7 DB](https://wordpress.org/plugins/advanced-cf7-db/) * [Frequently Asked Questions](https://wordpress.org/plugins/advanced-cf7-db/#faq) * [Support Threads](https://wordpress.org/support/plugin/advanced-cf7-db/) * [Active Topics](https://wordpress.org/support/plugin/advanced-cf7-db/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/advanced-cf7-db/unresolved/) * [Reviews](https://wordpress.org/support/plugin/advanced-cf7-db/reviews/) ## Tags * [export pdf](https://wordpress.org/support/topic-tag/export-pdf/) * 2 replies * 1 participant * Last reply from: [expia](https://wordpress.org/support/users/expia/) * Last activity: [6 years, 11 months ago](https://wordpress.org/support/topic/export-pdf-not-working/#post-11542814) * Status: resolved