Fatal error: Uncaught Error: Call to undefined function mb_convert_encoding() in /usr/home/schulte/WWW/htdocs/misc/virt/pictures/include/emogrifier.class.php:434
Stack trace:
#0 /usr/home/schulte/WWW/htdocs/misc/virt/pictures/include/emogrifier.class.php(411): Emogrifier->getUnifiedHtml()
#1 /usr/home/schulte/WWW/htdocs/misc/virt/pictures/include/emogrifier.class.php(233): Emogrifier->createXmlDocument()
#2 /usr/home/schulte/WWW/htdocs/misc/virt/pictures/include/functions_mail.inc.php(970): Emogrifier->emogrify()
#3 /usr/home/schulte/WWW/htdocs/misc/virt/pictures/include/functions_mail.inc.php(868): move_css_to_body('<!DOCTYPE html ...')
#4 /usr/home/schulte/WWW/htdocs/misc/virt/pictures/include/functions_mail.inc.php(478): pwg_mail(Array, Array, Array)
#5 /usr/home/schulte/WWW/htdocs/misc/virt/pictures/admin/include/updates.class.php(210): pwg_mail_admins(Array, Array, false, true)
#6 /usr/home/schulte/WWW/htdocs/misc/virt/pictures/include/page_tail.php(48): updates->notify_piwigo_new_versions()
#7 /usr/home/schulte/WWW/htdocs/misc/virt/pictures/index.php(374): include('/usr/home/schul...')
#8 {main}
thrown in /usr/home/schulte/WWW/htdocs/misc/virt/pictures/include/emogrifier.class.php on line 434