When you closely examine the messages of the apparitions claiming to be Mary one finds they contradict the Bible. Paul told the Galatians to disregard anyone or anything that brought another Gospel, which is to say a false gospel, other than the one he was bringing.
With respect to more than one Marian apparition, This One has taken the trouble to examine the message, and has not so found.
The “Mary” that shows up in a hallucination ain’t from God.
Why does she always have to “fix”, “correct”, or “interpret” what Jesus already clearly said?
2 Corinthians 11:14
And no wonder! For Satan himself transforms himself into an angel of light.
Galatians 1:8
But even if we or an angel from heaven should preach a gospel contrary to the one we preached to you, let him be under a curse!