Django-filer FilerImageField how to use widget outside admin

I want to use the FilerImageFieldin one of my model field and want the user to edit outside the admin area but when I try to load it, the widget doesn't work correctly and in the browser console I get and error in the javascript generated:

Uncaught TypeError: Cannot read property 'jQuery' of undefined

In here:

            <script type="text/javascript" id="id_featured_image_javascript">                  django.jQuery(document).ready(function(){                      var plus = django.jQuery('#add_id_featured_image');                      if (plus.length){                          plus.remove();                      }                      // Delete this javascript once loaded to avoid the "add new" link duplicates it                      django.jQuery('#id_featured_image_javascript').remove();                  });              </script>

The field in my model is defined like this:

featured_image = FilerImageField(db_column="FEATURED_IMAGE",                                   verbose_name=_('Featured Image'),                                   related_name='IPP_ARTICLE_FEATURED_IMAGE')

Do you have any idea why I can't use this field widget outside the admin? Do I need to set some configuration for this?

Thank you :)

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