_orgchart2.default is not a constructor

[gazpachu]

I'm getting this error: Uncaught TypeError: _orgchart2.default is not a constructor.

<div id="chart-container">
<ul id="ul-data">
      <li>Lao Lao
        <ul>
          <li>Bo Miao</li>
          <li>Su Miao
            <ul>
              <li>Tie Hua</li>
              <li>Hei Hei
                <ul>
                  <li>Pang Pang</li>
                  <li>Xiang Xiang</li>
                </ul>
              </li>
            </ul>
          </li>
        </ul>
      </li>
    </ul>
</div>
import OrgChart from 'orgchart';

new OrgChart({
      chartContainer: '#chart-container',
      data: '#ul-data',
    });