[galaxy-dev] Problem downloading results from MACS

Hi, I'm using Galaxy from the cloud (ID: pross@ucdavis.edu) and I'm trying to download some .xls files (MACS' results that were successfully finished) and I'm obtaining the following error message: *Server Error** An error occurred. See the error logs for more information. (Turn debug on to display exception reports here)* Please let me know how can I solve this problem. Thanks a lot, Yanina