The default image is default_' . $this->size . '.gif, but there's no file which name starts with "default" on the extension: https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/extensions/SocialProfile/+/master/awards/
This results in a broken image when managing gifts and awards,
A default working image should be provided, or don't render a broken image at all if it's the default.