What is the ruling regarding a woman who is fifty years old, broke her fast during Ramadan due to menstruation, did not make up those days, and is currently unable to make them up due to illness?

If delaying the making up of Ramadan fasts between two Ramadans was intentional and without a legitimate Shari excuse, then the questioner must repent to Allah and make up the missed days, in addition to feeding one poor person for each day as expiation for the delay. The expiation is not repeated if the delay is repeated. The make-up fast does not fall away from her as long as she is able to fast, and she must perform it whenever she can. However, if the delay was due to a legitimate Shari excuse, then expiation is not obligatory, and only the make-up fast is required. It is obligatory to prioritize making up the fast over voluntary fasting.