[Koha] Reports error message

[Hillyard, Cecil]

Hi,

I was trying to run a report that came from the report library,
"Complete shelf list".   It throws back an error message 

The following error was encountered:
The database returned the following error: 
 1
Please check the log for further details.
		
What is wrong with the report?

Thanks,
__________________________
Cecil Hillyard
Cataloger
Washoe County Library Technical Services
P.O. Box 2151
301 S. Center St.
Reno, NV 89505
tel.: 775-327-8338 or 775-327-8330
fax: 775-327-8334
www.washoecountylibrary.us