Кнопка загрузки ресурсов работает сразу на все вызовы, как исправить?

{set $result = '!pdoResources'|snippet:[
'parents'=>$id,
'depth'=>0,
'limit'=>3,
'includeTVs'=>'',
'tvPrefix'=>'',
'tpl'=>'@FILE tpls/oneSolution.tpl'
]}
{if $result}
<section class="current-projects-use ip-decisions-slider wrapper">
    <div class="h4 completed-projects__title">name</div>
    <ul class="completed-projects__list-slider ip-decisions__slider" id="solutionsWrapper-{$id}">
        {$result}
    </ul>
    <a href="#" class="completed-projects__order button loadDataByAjax completed-projects__order-text"
        data-parent="{$id}" data-limit="3">
       Показать больше
    </a>
</section>
{/if}

const loadDataByAjaxs = document.querySelectorAll('.loadDataByAjax');
if (loadDataByAjaxs) {
    loadDataByAjaxs.forEach((btn) => {
        btn.addEventListener('click', async (event) => {
            event.preventDefault();
            const btn = event.target;
            const parent = btn.dataset.parent;
            const limit = btn.dataset.limit;
            const wrapper = document.querySelector(`#solutionsWrapper-${parent}`);
            const offset = wrapper.childElementCount ? wrapper.childElementCount : 3;
            console.log(wrapper.childElementCount);

            const data = new FormData();
            data.append('parent', parent);
            data.append('limit', limit);
            data.append('offset', offset);

            let response = await fetch('/core/elements/snippets/getData.php', {
                method: 'POST',
                headers: {},
                body: data
            });

            let result = await response.text();
            if (result) { wrapper.innerHTML += result; } else { btn.remove(); }
        });
    });
}

<?php
require_once 'path_to/config.core.php';
require_once MODX_CORE_PATH.'model/modx/modx.class.php';
$modx = new modX();
$modx->initialize('web');
$modx->getService('error','error.modError', '', '');
$parent = $_POST['parent'];
$limit = $_POST['limit'];
$offset = $_POST['offset'];

$output = $modx->runSnippet('pdoResources',array(
    'parents' => $parent,
    'limit'=> $limit,
    'offset'=>$offset,
    'includeTVs'=>'',
    'tvPrefix'=>'',
    'tpl'=>'oneSolution.tpl'
 ));
 echo $output; 
die();

'pageVarKey' => 'unique',
'pageNavVar' => 'unique.nav',
'ajaxElemWrapper' => '#unique',
'ajaxElemRows' => '#unique .rows',
'ajaxElemPagination' => '#unique .pagination',
'ajaxElemLink' => '#unique .pagination a',
'ajaxElemMore' => '#unique .more',