This question has been answered by Spheerys. See the first response.
[2016-05-14 18:56:46] (ERROR @ /home/Hedy/web/domain.fr/public_html/core/model/modx/modcachemanager.class.php : 100) Resource URI abbaye/animations/rendez-vous-gourmands already exists for resource id = 82; skipping duplicate resource URI for resource id = 83 [2016-05-14 18:56:46] (ERROR @ /home/Hedy/web/domain.fr/public_html/core/model/modx/modcachemanager.class.php : 166) Could not cache context settings for web.