Here is a short log :
09:45:55 /ne-pas-mettre-tous-ses-oeufs-dans-le-meme-panier/ supercache dir: /home/www/web/wp-content/cache/supercache/www.seomix.fr/ne-pas-mettre-tous-ses-oeufs-dans-le-meme-panier/
09:45:55 /ne-pas-mettre-tous-ses-oeufs-dans-le-meme-panier/ No wp-cache file exists. Must generate a new one.
09:45:55 /ne-pas-mettre-tous-ses-oeufs-dans-le-meme-panier/ In WP Cache Phase 2
09:45:55 /ne-pas-mettre-tous-ses-oeufs-dans-le-meme-panier/ Setting up WordPress actions
09:45:55 /ne-pas-mettre-tous-ses-oeufs-dans-le-meme-panier/ Created output buffer
09:46:04 /ne-pas-mettre-tous-ses-oeufs-dans-le-meme-panier/ Output buffer callback
09:46:04 /ne-pas-mettre-tous-ses-oeufs-dans-le-meme-panier/ Anonymous user detected. Only creating Supercache file.
09:46:04 /ne-pas-mettre-tous-ses-oeufs-dans-le-meme-panier/ Writing non-gzipped buffer to supercache file.
09:46:04 /ne-pas-mettre-tous-ses-oeufs-dans-le-meme-panier/ Renamed temp supercache file to /home/www/web/wp-content/cache/supercache/www.seomix.fr/ne-pas-mettre-tous-ses-oeufs-dans-le-meme-panier/index.html
09:46:04 /ne-pas-mettre-tous-ses-oeufs-dans-le-meme-panier/ Sending buffer to browser
09:46:04 /ne-pas-mettre-tous-ses-oeufs-dans-le-meme-panier/ wp_cache_shutdown_callback: collecting meta data.
09:46:04 /ne-pas-mettre-tous-ses-oeufs-dans-le-meme-panier/ Did not write meta file: wp-cache-13efced89bfb8da8de8f0f269e8f4dd7.meta *1* *1* *1*
Thanks for your help.
I just found a solution.
This issue was a bad compatibility with the “tweet old post” plugin.
Regards,