Widget Error

During a fresh install of the latest Review Builder, I receive the following error when adding it as a Widget on my sidebar:

Fatal error: Call to a member function getTitle() on a non-object in /home/artsoflo/public_html/wp/wp-content/plugins/review-builder/com/controllers/Review.php on line 392

This happens regardless whether or not there are any reviews posted.

https://ww.wp.xz.cn/plugins/review-builder/