I just upgraded to version 1.12, but after I run the “web cron” script ( server/piwik/misc/cron/archive.php?token_auth=XYZ ), the widgets in the dashboard now have content like:
[2013-05-31 01:04:24] [bfda487d] [3.16 Mb] Already processed, fetching idArchive = 20 (idSite=1), for day (2013-05-31), plugin Referers, Visits = 1
No, it’s something with the archive script. I did a new install, everything was clean, then run the script and the errors showed again. The funny thing is, I have no idea where they come from - they are still seen after I deleted the archive tables from the DB and the /tmp/cache directory.