Hi! It sounds like there’s nothing wrong with your customisations at all; you’ve followed the standard workflow there. I think the final line of the error log is key here: "RuntimeError: Unable to create a new session key. It is likely that the cache is unavailable.” Sounds to me something interrupted memcached, or your connection to it. That’s where I’d start. Rob On 5 Nov 2016, at 10:17, Alioune <balioune3 at gmail.com<mailto:balioune3 at gmail.com>> wrote: Hi all, I've installed Openstack Prod env with Fuel and I would like to customize the dashboard by using my own logo.png and logo-splash.png. I've changed all logo and logo-splash in these folders and restarted services apache2 and memcached : /usr/share/openstack-dashboard/openstack_dashboard/themes/vendor/static/img/ /var/lib/openstack-dashboard/static/themes/vendor/img/ /usr/lib/python2.7/dist-packages/openstack_dashboard/static/dashboard/img/ /var/lib/openstack-dashboard/static/dashboard/img/ After that I was able to connect to the dashboard with my customizations but few hours after I got the error in [1]. All others openstack services ares correctly running in commands lines. Someone knows what's wrong with my configurations ? How to customize the horizon to avoid such an error ? Best Regards, [1] http://paste.openstack.org/show/588038/ __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: OpenStack-dev-request at lists.openstack.org<mailto:OpenStack-dev-request at lists.openstack.org>?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20161107/9a59e5b5/attachment.html>