Calculating rate problem

Hello!  i think there is some mistake!  our last rating is 3 from the customer Mrs. Vula.  In fact, I see that she gave 6 ratings in the individual categories with very positive ratings, and for that I think there is a mistake!

please review the case!  I see given 3 times 10 and 2 times 7.5, there is no way the total rating can be 3, we had a similar problem during another rating