Brazillian Look FL, Brazillian Palm, Fertilized/watered W/manganese, Still Looks Like Its Dying. What Should I Do?

FL, Brazillian Palm, fertilized/watered w/manganese, still looks like its dying. what should I do? - brazillian look

The others look like palm trees in my garden, but can the leaves of Brazilian palm trees, from bottom to top. It is an expensive tree I do not want to miss! If you any advice for me?