Insert and Save only for registered users

Hello, Thanks for the reply. Here’s how I solved my problem. I changed the insert_data() function in the H5PXAPIKATCHU.php file.

function insert_data() {
// Add hook ‘h5pxapikatchu_insert_data’
do_action( ‘h5pxapikatchu_insert_data’ );

global $wpdb;

$xapi = $_REQUEST['xapi'];

$xapidata = new XAPIDATA( $xapi );

// Get actor array from XAPIDATA
$actor_array = $xapidata->get_actor(); 

$actor_id_to_check = ''; 

// Extract the relevant actor identifier from the array
if (is_array($actor_array)) {
    if (isset($actor_array['inverseFunctionalIdentifier'])) {
        $actor_id_to_check = $actor_array['inverseFunctionalIdentifier'];
    } elseif (isset($actor_array['mbox'])) {
        $actor_id_to_check = $actor_array['mbox'];
    } elseif (isset($actor_array['account']['name']) && isset($actor_array['account']['homePage'])) {
        $actor_id_to_check = $actor_array['account']['name'];
    } elseif (isset($actor_array['openid'])) {
        $actor_id_to_check = $actor_array['openid'];
    }
}

// Block statements if actor ID is empty or doesn't start with "email: mailto:"
if (empty($actor_id_to_check) || strpos($actor_id_to_check, 'email: mailto:') !== 0) {
    wp_die();
}

$actor = $xapidata->get_actor();
$actor['wpUserId'] = get_current_user_id();
$actor['wpUserId'] = ( 0 === $actor['wpUserId'] ) ? null : $actor['wpUserId'];
$actor = filter_insert_data_actor( $actor );

$verb = $xapidata->get_verb();
$verb = filter_insert_data_verb( $verb );

$object = $xapidata->get_object();
preg_match( '/[&|?]id=([0-9]+)/', $object['id'], $matches );
$object['h5pContentId'] = ( sizeof( $matches ) > 0 ) ? $matches[1] : null;
preg_match( '/[&|?]subContentId=([0-9a-f-]{36})/', $object['id'], $matches );
$object['h5pSubContentId'] = ( sizeof( $matches ) > 0 ) ? $matches[1] : null;
$object = filter_insert_data_object( $object );

$result = $xapidata->get_result();
$result = filter_insert_data_result( $result );

if ( Options::store_complete_xapi() ) {
    $xapi = str_replace( '\"', '"', $xapi );
    $xapi = str_replace( "\'", "'", $xapi );
} else {
    $xapi = null;
}
$xapi = filter_insert_data_xapi( $xapi );

// Add hook 'h5pxapikatchu_insert_data_pre_database'
do_action( 'h5pxapikatchu_insert_data_pre_database' );

$main_id = Database::insert_data( $actor, $verb, $object, $result, $xapi );

// Add hook 'h5pxapikatchu_insert_data_post_database'
do_action( 'h5pxapikatchu_insert_data_post_database', $main_id );

wp_die();

}