Ghara – Maitri is very important part of Ashtkoot Guna milan. Graha maitri as the name suggest if friendship of the planets. In your horoscope it seems that the Rashi lord are inimical to each other and because of which the Graha maitri score is 0.5 out of maximum 5.
I will not accept the statement that if Ghama maitri is less than marriage can not take place. Certainly besides dosha like Mangal Dosha and kaal sarp dosha etc which we see in the individual horoscope, in matching there are 8 points and never you will get everything perfect. I mean the ashtkoot without any dosha and also the individuals charts matching perfectly. The analysis by a astrologer has to weight the good and the bad points of horoscope matching, and if the good points weight the bad point marriage can be considered.