Fatal error: Uncaught Error: Class 'DOMDocument' not found in /var/www/html/piwigo/include/emogrifier.class.php:406
Stack trace:
#0 /var/www/html/piwigo/include/emogrifier.class.php(233): Emogrifier->createXmlDocument()
#1 /var/www/html/piwigo/include/functions_mail.inc.php(970): Emogrifier->emogrify()
#2 /var/www/html/piwigo/include/functions_mail.inc.php(868): move_css_to_body()
#3 /var/www/html/piwigo/include/functions_mail.inc.php(478): pwg_mail()
#4 /var/www/html/piwigo/admin/include/updates.class.php(212): pwg_mail_admins()
#5 /var/www/html/piwigo/include/page_tail.php(48): updates->notify_piwigo_new_versions()
#6 /var/www/html/piwigo/include/functions.inc.php(1054): include('/var/www/html/p...')
#7 /var/www/html/piwigo/include/functions_html.inc.php(285): redirect_html()
#8 /var/www/html/piwigo/include/section_init.inc.php(346): access_denied()
#9 /var/www/html/piwigo/picture.php(11): include('/var/www/html/p...')
#10 {main}
thrown in /var/www/html/piwigo/include/emogrifier.class.php on line 406