I have following code, but my page doesn't load anymore. What is wrong?

require( plugin_dir_path( __FILE__ ) . 'menu.php');
require_once( plugin_dir_path( __FILE__ ) . 'getuser.php');

add_action( 'wp_enqueue_scripts', 'ffd_load_scripts' );

function ffd_load_scripts()
{
    $myoption =  get_option( 'fixformdata_options' );
    $myoptionValue = maybe_unserialize( $myoption );  

    $arguments = array();
    for($i=1; $i<= $myoptionValue[fieldcount]; $i++)
    {
        $arguments['index'.$i] = $myoptionValue['id'.$i];
    }

    wp_register_script('ffd_js_script', WP_PLUGIN_URL.'/FixFormData/js/ffd_js_script.js', array('jquery'));
    wp_localize_script('ffd_js_script', 'myAjax', merge_array(array(
        'ajaxurl' => admin_url('admin-ajax.php'),
        'idinfo' => $myoptionValue['idinfo']),$arguments)
        );

    wp_enqueue_script('jquery');
    wp_enqueue_script('ffd_js_script', plugin_dir_url(__FILE__) . 'js/ffd_js_script.js');
}

Previously it worked fine, the problem is given by the $arguments I think. Tried some things but still have this issue.

The problem is located in this part:

$arguments = array();
    for($i=1; $i<= $myoptionValue[fieldcount]; $i++)
    {
        $arguments['index'.$i] = $myoptionValue['id'.$i];
    }

    wp_register_script('ffd_js_script', WP_PLUGIN_URL.'/FixFormData/js/ffd_js_script.js', array('jquery'));
    wp_localize_script('ffd_js_script', 'myAjax', merge_array(array(
        'ajaxurl' => admin_url('admin-ajax.php'),
        'idinfo' => $myoptionValue['idinfo']),$arguments)
        );

When I use this code, everything works fine, but I really need the iterator:

function ffd_load_scripts()
{
    $myoption =  get_option( 'fixformdata_options' );
    $myoptionValue = maybe_unserialize( $myoption );  

    /*$arguments = array();
    for($i=1; $i<= $myoptionValue['fieldcount']; $i++)
    {
        $arguments['index'.$i] = $myoptionValue['id'.$i];
    }*/

    wp_register_script('ffd_js_script', WP_PLUGIN_URL.'/FixFormData/js/ffd_js_script.js', array('jquery'));
    wp_localize_script('ffd_js_script', 'myAjax', array(
            'ajaxurl' => admin_url('admin-ajax.php'),
            'idinfo' => $myoptionValue['idinfo'],
            'index1' => $myoptionValue['id1'],
            'index2' => $myoptionValue['id2']
            )
        );

    wp_enqueue_script('jquery');
    wp_enqueue_script('ffd_js_script', plugin_dir_url(__FILE__) . 'js/ffd_js_script.js');
}