Type "/aadv help" shows up a list similar to:
/auc help
/auc end
/auc abort
....
/auc stat simple help
/auc stat stddev help
/auc stat purchased help
the "/auc" commands do not work for stat objects, recommend either adding them in with the 'auc' handler, or rename them to the proper "/aadv" slash commands as:
/aadv stat simple help
/aadv stat stddev help
/aadv stat purchased help
Similar bug in AucClassic - /auc sometimes won't work, but /auctioneer will