Query error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 6 - Invalid query: 
            SELECT
                p.*
        
            FROM
                giulishop_prodotti AS p
         WHERE  permalink = 'crema-spalmabile-alla-nocciola-e-caramello-250g' AND  p.id_categoria = 
<br />
<b>Fatal error</b>:  Uncaught Error: Call to a member function row() on bool in /var/www/vhosts/cioccolatogiuli.it/httpdocs/moduli/prodotti/class.php:320
Stack trace:
#0 /var/www/vhosts/cioccolatogiuli.it/httpdocs/template/prodotti.php(8): Prodotti-&gt;get()
#1 /var/www/vhosts/cioccolatogiuli.it/httpdocs/index.php(79): include('/var/www/vhosts...')
#2 {main}
  thrown in <b>/var/www/vhosts/cioccolatogiuli.it/httpdocs/moduli/prodotti/class.php</b> on line <b>320</b><br />