Warning: Trying to access array offset on value of type null in C:\xampp\htdocs\AmericanBurguer\controllers\ventas\cambiarEstado.php on line 15

Warning: Trying to access array offset on value of type null in C:\xampp\htdocs\AmericanBurguer\controllers\ventas\cambiarEstado.php on line 16

Fatal error: Uncaught mysqli_sql_exception: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1 in C:\xampp\htdocs\AmericanBurguer\controllers\ventas\cambiarEstado.php:19 Stack trace: #0 C:\xampp\htdocs\AmericanBurguer\controllers\ventas\cambiarEstado.php(19): mysqli->query('UPDATE `ventas`...') #1 {main} thrown in C:\xampp\htdocs\AmericanBurguer\controllers\ventas\cambiarEstado.php on line 19