monitor via dude and sawmill

hi dear
i wanna monitor Url visited via hotspot user in my office
i enable webproxy and send log to Dude
now i wanna a app to analyze this log file
i fine sawmill that can do it
but when create profile in sawmill
sawmill server can fount type of my log file but can’t built data base and shown below message:
Couldn’t find node label in profiles.untitledq.database.fields.date_time

Error occurred at: : ........\src\config_node.cpp:1292 Error occurred in Salang at current_context:1



have anybody that help me for this issue?
or have any other app to view visited url?
tnx

No anybody that monitor visited user URl?
plz help me