Getting Error "multiple aggregate reviews"

Hi !!! i’m new to wordpress.. i’m developing a site http://www.tutofactory.com

for this site i’m using all schema rixh snippets so my problem is when i using this plugin google Structured Data Testing Tool showing error like this

i uploaded image also please see here

http://www.tutofactory.com/wp-content/uploads/2014/11/how-to-fix.png

so how can i fix that problem on more thing is without add rating google Structured Data Testing Tool showing ratings

here is the proof
http://www.tutofactory.com/wp-content/uploads/2014/11/how-to-fix2.png

https://ww.wp.xz.cn/plugins/all-in-one-schemaorg-rich-snippets/