The apparition is approved. The prophecies have since been tampered with.
REad sources very carefully
Always be careful of misinformation regarding the Catholic church, especially because the true account will always, always, be available.
The enemy hates and fears the Blessed Mother, of course, and will distract as much as possible.
Any apparition should bring faith, hope and love, not dread and fear. And there are Many apparitions that have not been approved by the Vatican, and I find it always good to ignore them.
It’s really a case of don’t believe everything you read.
http://www.arcaneknowledge.org/catholic/lasalette.htm
“...Some of this misinformation was propagated by Melanie herself in her later years, most infamously in an 1879 tract that was placed on the Index of Prohibited Books, yet still enjoys popularity among traditionalist publishers misled by the imprimatur of the bishop of Lecce. Those who have only casual knowledge of the story of La Salette may easily mistake this extravagantly embellished apocalyptic narrative as the true content of the revelation,...
...To correct these common misunderstandings of the message of La Salette, it is essential to return to the original accounts,
Very interesting link, thanks.