ok
thank you thunderstrike , et merci manurom .
Je n'ai plus d'erreur depuis l'install ds 2 mods.
I've installed both mods and I got another problem:
As my website is by defaut in french language (second language is english), when I click the english image to change, the site interface (i.e : login, logout, welcome, top images...) is still in french. I must put english by defaut in ACp so that when I clik to translate in french it works..
How can I resolve this?