Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given in /home/dmli/public_html/tl_files/coding/datamining.class.php on line 362

#0 [internal function]: __error(2, 'mysql_num_rows(...', '/home/dmli/publ...', 362, Array)
#1 /home/dmli/public_html/tl_files/coding/datamining.class.php(362): mysql_num_rows(false)
#2 /home/dmli/public_html/templates/indiviual_member.php(8): datamining->show_individual(NULL)
#3 /home/dmli/public_html/system/libraries/Controller.php(1892): include('/home/dmli/publ...')
#4 /home/dmli/public_html/system/modules/frontend/FrontendTemplate.php(161): Controller->replaceInsertTags('output()
#6 /home/dmli/public_html/index.php(198): PageRegular->generate(Object(DB_Mysql_Result))
#7 /home/dmli/public_html/index.php(333): Index->run()
#8 {main}