Can not delete batch GP2010

Hi, Guru,

One user try to delete batch under "receivables batch entry" and got error "exception_class_script_out _of_range scrip_cmd_set". so I try to run query cmd "update sy00500 set mkdtopst=0, bchsttus=0 where bachnumb="xxx" follow microsoft KB 850289. I got error 'invalid object name 'sy00500'. appreciate for any help!

thanks

George W