She has a book out discussing her issues with fame, church, family. In the article linked, it says she had an issue with the Catholic church because they unfortunately are one of the organizations who try to cover up abuse. Even though it does not sound like she had direct abuse related to the church, she blames the church for protecting or ignoring abusers, one of which was her mother.
As of that article, no cause of death was released by authorities yet either.