There are many Dosh have been told by people, I do not know much about Kanya Dosha in particular, but I know that it is believed that Kanya Dosha is found in the horoscope of a woman who has not performed her relationship or responsibilities in a proper way in her previous birth.
By the way, when the message is given in the world that a man should live not in his past or future but in today, then this thing has happened in the previous birth. How is a person's actions of that life will affect this birth, but in the present time his action and he will decide the faults and virtues of his future.
However, as you have suggested that you want to know the remedies for Kanya Dosha, my advice is that first of all, give priority to karma, do not do any work with the intention of damaging anyone, besides mentioning some ways in our scriptures. Have gone through which it is possible to prevent such Doshas -
1. More and more donations - It is believed that there is a big flaw in our horoscope, but if we donate to the poor and needy person, then it also converts our faults into virtue.
2. Goddess worship - Goddess is our mother and she is the one who created us. When the Goddess is worshiped with a sincere heart, then even the biggest crisis is averted, for this must read the book of Durga Saptashati -
These three sources are considered very important. Read them regularly, if possible, read them in Sanskrit.
3. Serving birds and animals - must feed a roti to the cow daily and pour grains and water for the birds on the roof of your house. God's creation is a gift so if you give your service to them then god will definitely remove all your dosh.
4. Do your deeds while giving importance to humanity, God does not allow anything wrong with a good person.
Do not trouble yourself or your special people by thinking about the Dosha of the kundalini. If your actions are honest then there is no fault in you but only virtues.