Bonjour, je suis chez OVH

Bonjour/Bonsoir,

Je souhaiterais faire une sauvegarde avant l'installation de la nouvelle version piwigo.

Mais j'ai un problème ca m'affiche ce message :

Fatal error: Uncaught Error: Call to undefined function mysql_select_db() in /home/traininghk/rendersdbz/admin/include/mysqldump.php:75 Stack trace: #0 /home/traininghk/rendersdbz/admin/include/mysqldump.php(66): MySQLDump->setDatabase('traininghkathle...') #1 /home/traininghk/rendersdbz/admin/include/updates.class.php(466): MySQLDump->__construct('traininghkathle...', '/home/trainingh...', false, false) #2 /home/traininghk/rendersdbz/admin/updates_pwg.php(91): updates::dump_database(false) #3 /home/traininghk/rendersdbz/admin/updates.php(28): include('/home/trainingh...') #4 /home/traininghk/rendersdbz/admin.php(309): include('/home/trainingh...') #5 {main} thrown in /home/traininghk/rendersdbz/admin/include/mysqldump.php on line 75

Comment y remedier?

Merci

Version de Piwigo:
Version de PHP:
Version de MySQL:
URL Piwigo: https://renders-dbz.com/