pagantis / woocommerce

templates/admin_header.php

<img id="pagantis_logo" src="<?php echo esc_url($logo); ?>" />

The function esc_url was not found. Maybe you did not declare it correctly or list all dependencies?

<p> <?php echo $panel_description; ?></p>
<p><a href="https://bo.pagantis.com" target="_blank" class="button button-primary">
        <?php echo $button1_label; ?></a>
    <a href="http://docs.pagantis.com/" target="_blank" class="button"><?php echo $button2_label; ?></a></p>
<hr>
<table class="form-table">
    <?php echo $settings ?>
</table>