The Guna milan score is 8.5 out of 36, which is less than 18 that is required for marriage. There is Gana dosha, 2-12 Bhakoot dosha and Madhya Nadi dosha. You should check if the dosha get cancelled before solemnize marriage else problems on the marriage front are strongly indicated. Also you should do the grah milan to see the strength of the planets vis a vis both the horoscopes.
Sorry for the delay in my response. I have checked manually also and as you are born under the Poorva Phalguni Nakshatra Charan 1 and the female is born under the Chitra Nakshatra charan 2. The guna milan score is 8.5 only.
I feel the calculation done by the other two astrologers is incorrect.