<ul class="boekuwzending_actions submitbox">
    <li class="wide">
        <em>
            <?php
            esc_html_e(
                'The plugin is not properly connected to the Boekuwzending API, please check your settings.',
                'boekuwzending-for-woocommerce'
            ); ?>
        </em>
    </li>
</ul>