The Ashtkoot Guna milan score is 8.5 which is less than 18 that is required for marriage. There is Nadi Dosha, Bhakoot Dosha and Gana dosha. Both belong to Kanta Rajju which is not auspicious and leads to severe problems in marital life.
The Girl can do the Maa Katyayani Puja, this is strong remedy when horoscope matching is not good like in your care. You can read more about Maa Katyayani Puja from the link below.
https://astrologymag.com/katyayani-puja-for-marriage-when-guna-milan-is-less/
Blessings,
Navneet Khanna
Astrologer