From term.log
Removing openerp-server ...
Stopping openerp-server: start-stop-daemon: warning: failed to kill 3048: No such process
openerp-server.
userdel : l'utilisateur openerp est connecté
/usr/sbin/deluser : « /usr/sbin/userdel openerp » a retourné le code d'erreur 8. Abandon.
dpkg: error processing openerp-server (--remove):
subprocess installed post-removal script returned error exit status 1
Thanks for your report
From term.log
Removing openerp-server ...
Stopping openerp-server: start-stop-daemon: warning: failed to kill 3048: No such process
openerp-server.
userdel : l'utilisateur openerp est connecté
/usr/sbin/deluser : « /usr/sbin/userdel openerp » a retourné le code d'erreur 8. Abandon.
dpkg: error processing openerp-server (--remove):
subprocess installed post-removal script returned error exit status 1
moving to openerp