Cannot write in the folder <font color=red><b>phpMyVisites root (/var/www/vhosts/snuisudtresor.fr/web_users/gill/plugins/auto/phpmyvisites_1_9/ OR/AND (if exists) /tpl_compiled)</b></font> : please verify that you have the rights necessary to create files on the server (try to CHMOD 777 the folder with your FTP software (right click on the directory -> Permissions (or CHMOD)).