Notice: Trying to get property 'num_rows' of non-object in /var/www/html/opac/lib/detail.inc.php on line 242

Fatal error: Uncaught Error: Call to a member function free_result() on bool in /var/www/html/opac/lib/detail.inc.php:250 Stack trace: #0 /var/www/html/opac/lib/detail.inc.php(453): detail->getItemCopy() #1 /var/www/html/opac/lib/detail.inc.php(99): detail->htmlOutput() #2 /var/www/html/opac/lib/contents/show_detail.inc.php(123): detail->showDetail() #3 /var/www/html/opac/index.php(72): include('/var/www/html/o...') #4 {main} thrown in /var/www/html/opac/lib/detail.inc.php on line 250