It is not permissible to expiate for a broken oath by fasting unless you are unable to feed or clothe needy people or to free a slave

No File Exists
Check below answers in case you are looking for other related questions:
What is kafaarat yameen in detail?
He vowed not to buy meat

No File Exists
Related Answers:
He owes many expiations for breaking oaths (kafaarat yameen), and he does not know how to do it
He vowed to take his mother for ‘Umrah on the day of Eid; can he take her for ‘umrah in Ramadan?
A vow in intention only does not have to be fulfilled
What is kafaarat yameen in detail?
He vowed not to buy meat

Recommended answers for you:
Intercourse during Ramadaan
Wife complaining of husband’s mistreatment
The ideal way to send blessings upon the Prophet (blessings and peace of Allah be upon him
Her husband treats her kindly but he does not give her her shar‘i right to intimacy; what should she do?
Masturbating when fasting