Google Structure Data Testing Tool Error - "The review has no reviewed item specified."

Laura Yeiser Bloom "Thank you! You're right about not being overwhelmed!
Just following your smoothie prep advice has helped my morning routine.
Ifs so easy to prep seven bags at a time and freeze." 2016-06-29T04:21:26+00:00 "Thank you! You're right about not being overwhelmed! Just following your smoothie prep advice has helped my morning routine. Ifs so easy to prep seven bags at a time and freeze." http://ift.tt/2hrcCgj

Google Structured Data Testing Tool error

hreview 1 ERROR 0 WARNINGS
@type hreview
dtreviewed 2016-06-29T04:21:26+00:00
permalink http://ift.tt/2hrcCgj
reviewer
@type hcard The review has no reviewed item specified.

I have a basic knowledge in Schema but I can't seem to figure out this GSDTT error. Ive been finding the solution but Im still stuck. I need help with this "The review has no reviewed item specified." error. thanks