What is the ruling of Islamic law concerning my mother who has been afflicted by sorcery and breaks her fast in Ramadan due to its influence? Is she required to make up the days (qada') or only offer expiation (kaffarah), and what is the amount of the expiation?

Your mother must strive against her self to fulfill the commanded duties and abandon the forbidden acts. She should seek Allah's help and frequently supplicate, recite ruqyah (definition), and the narrated incantations. She is not permitted to obey the jinn in their command to break her fast in Ramadan (definition). If the jinn commands her to do something forbidden, she must disobey it and adhere to Allah's law. She should seek refuge in Allah from its evil and fortify herself by reciting the Qur'an and lawful adhkar. If she is unable to fast after striving against herself, she must make up the days when she is able. There is no expiation required of her as long as her delay is not by choice.