For the warning you’re seeing:
In your WP admin > Qode Options > Logo, make sure to upload your logo in all the fields there, instead of our default logos. That should resolve this.
if the warning is still on after it, you should then edit this file wp-content\plugins\bridge-core\modules\shortcodes\shortcode-elements\_slider\slider.php , and you need to edit following part of code:
list($logo_width, $logo_height, $logo_type, $logo_attr) = getimagesize($_SERVER['DOCUMENT_ROOT'].$logo_url_obj['path']);
http://screencast.com/t/qxOHdvT5Ddxq to look like this:
list($logo_width, $logo_height, $logo_type, $logo_attr) = getimagesize($bridge_qode_options['logo_image']);