Does my older sister need an exorsims?

It like everytime I talk to my sister about God , Church and the Bible she gets very upset. My sister age 38 she is having a hard time with my 17 year old nephew personal issues. She does not practice any religion she consider herself Catholic but does not attend church. My nephew's and aunt fight a lot. I told my sister the importance of attending church I invited her. She get very upset and cut me off. Is my sister possessed by demons? Does she need an exorsims?

Does my older sister need an exorsims?
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