Notice: Trying to get property 'num_rows' of non-object in /var/www/vhosts/fratellirondini.com/httpdocs/it/categories.php on line 19

Fatal error: Uncaught Error: Call to a member function fetch_assoc() on bool in /var/www/vhosts/fratellirondini.com/httpdocs/it/categories.php:31 Stack trace: #0 {main} thrown in /var/www/vhosts/fratellirondini.com/httpdocs/it/categories.php on line 31