[galaxy-dev] Lost my data on Galaxy

Hi, When I started Galaxy today I lost more than half of my processed data, weeks of work ;-(. I had a look at the deleted dataset but nothing, If I had erased them erroneously I wouldn't have purge them.... Is it possible that there was a problem with the server? Or do a kind of logfile/history exist to see everything what happened on the account? Thanx and have a nice week-end Céline