Bonjour/Bonsoir,

Voici le message qui s'affiche en haut de l'écran lorsque j'ouvre une photo :

Strict Standards: DateTime::__construct(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Berlin' for 'CET/1.0/no DST' instead in /homepages/16/d150392120/htdocs/galerie/piwigo/include/functions.inc.php on line 584

Warning: Cannot modify header information - headers already sent by (output started at /homepages/16/d150392120/htdocs/galerie/piwigo/include/functions.inc.php:584) in /homepages/16/d150392120/htdocs/galerie/piwigo/include/page_header.php on line 101

J'ai du mal avec la langue de Shakespeare, alors merci de me dire ce que je dois faire pour supprimer ce message.
Merci
Poloziat