Fatal error: Uncaught mysqli_sql_exception: Unknown column '$slug' in 'WHERE' in /home/v197epns8wsd/public_html/ignova/functions.php:23 Stack trace: #0 /home/v197epns8wsd/public_html/ignova/functions.php(23): mysqli_query() #1 /home/v197epns8wsd/public_html/ignova/product.php(5): getProductBySlug() #2 {main} thrown in /home/v197epns8wsd/public_html/ignova/functions.php on line 23