Unique ID Error

OK, found it but the code doesn’t work.

I need to be replaced, this code (in includes/fields/textbox.php row 306):
$ninja_forms_processing->add_error('email-general', $invalid_email);

with:
$ninja_forms_processing->add_error('email-general', $invalid_email, $field_id);

and this code (in includes/fields/spam.php row 131):
$ninja_forms_processing->add_error('spam-general', $spam_error, 'general');

with:
$ninja_forms_processing->add_error('spam-general', $spam_error, $field_id );

My code is:

function ninja_forms_newdisplay_error(){
  add_action( 'ninja_forms_pre_process', 'ninja_forms_newdis', 100 );
}
add_action( 'init', 'ninja_forms_newdisplay_error' );

function ninja_forms_newdis(){

  global $ninja_forms_processing;

$xxx = $ninja_forms_processing->get_all_errors();
$xxx = array(
'email-general' => array(‘error_msg’ => ‘MY MESSAGE’),
'spam-general' => array (‘error_msg’ => ‘MY MESSAGE’)
);
 }

Can you help me?

I have solved with another type of function

Why edit post function disappears in short time?
Forced to write new post ??

My goal was to show just a mistake at a time in the alert box above the form.
This is my contribute:

function register_maxdisplay_errori(){
  add_action( 'ninja_forms_pre_process', 'maxdisplay_errori', 100 );
}
add_action( 'init', 'register_maxdisplay_errori' );

function maxdisplay_errori(){

  global $ninja_forms_processing;

  $all_errors = $ninja_forms_processing->get_all_errors();
  $numero_errori = count($all_errors);

    if( $numero_errori > 4 ) {
    $ninja_forms_processing->remove_error('spam-general');
    $ninja_forms_processing->remove_error('email-general');
    }

    elseif ( $numero_errori > 2 ) {
    $ninja_forms_processing->remove_error('spam-general');
    }

 }

I hope to be helpful to someone else.
Maybe next time I will have a little help for gratitude.

Bye