provide the wp ulike with the HTTP request header that contains the real visitor IP

wp-ulike.php

<?php
/**
 * Add a custom HTTP request header to fix IP address detection
 * @param \Geminilabs\Vectorface\Whip $whip
 * @return void
 */
add_action('wp_ulike_whip_action', function ($whip) {
    $customHeader = 'HTTP_X_SUCURI_CLIENTIP'; // change the header as needed
    $whip->addCustomHeader($customHeader);
});