Oups!
file_exists(): open_basedir restriction in effect. File(/mnt/webdata/data/www) is not within the allowed path(s): (/home/webapps/public_html:/mnt/webdata/data/devlsbg:/mnt/webdata/var/tasks:/mnt/webdata/var/keys:/mnt/webdata/shared:/var/log/logiksuite:/home/webapps/data/devlsbg:/tmp:/home/bgauthier/public_html)