whitesports/app/wp-content/plugins/nextend-face.../providers/disqus/disqus.php

<?php

class NextendSocialProviderDisqus extends NextendSocialProviderDummy {

    protected $color = '#2e9fff';

    public function __construct() {
        $this->id    = 'disqus';
        $this->label = 'Disqus';
        $this->path  = dirname(__FILE__);
    }
}

NextendSocialLogin::addProvider(new NextendSocialProviderDisqus());