Warning: Undefined array key "anio" in C:\xampp8_2\htdocs\web\convocatorias.php on line 178

Fatal error: Uncaught TypeError: sqlsrv_fetch_array(): Argument #1 ($stmt) must be of type resource, bool given in C:\xampp8_2\htdocs\web\convocatorias.php:188 Stack trace: #0 C:\xampp8_2\htdocs\web\convocatorias.php(188): sqlsrv_fetch_array(false, 2) #1 {main} thrown in C:\xampp8_2\htdocs\web\convocatorias.php on line 188