Warning: Undefined variable $seccion in /home/c2720239/public_html/productos_cat.php on line 14

Fatal error: Uncaught mysqli_sql_exception: 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 1 in /home/c2720239/public_html/productos_cat.php:15
Stack trace:
#0 /home/c2720239/public_html/productos_cat.php(15): mysqli_query(Object(mysqli), 'SELECT * FROM c...')
#1 {main}
  thrown in /home/c2720239/public_html/productos_cat.php on line 15