First of all, I am really new to Silverstripe. That being said... I set my site in French using i18n::set_locale('fr_FR'); in /mysite/_config.php and everything was fine. Then I installed the Event Calendar and DataObjectManager and now some parts of the site (CMS Login form) and the CMS itself reverted to english even when the option is set on French. I wasn't able to get it back to French. I searched the forums but cannot find anything about this... I am looking here for advice. Thanks
the site, in case that could help: www.lafourmiliere.ca