Can't cast String to Particle

Hello,
I want to get a particle (as a string) out of a .yml file and convert it into a Particel. I want to do that, so I can spawn particle at the Player which he slected previous. I tryed it like that:
Particle partikel = (Particle) yamlConfiguration.get(String.valueOf(player));

 

The method:

Code:

@EventHandler
public static void onPlayerMove(PlayerMoveEvent event) {
if (!event.getFrom().getBlock().equals(event.getTo().getBlock())) {
Player player = event.getPlayer();
File file = new File("plugins//config//partikel.yml");
YamlConfiguration yamlConfiguration = YamlConfiguration.loadConfiguration(file);
if (yamlConfiguration.contains(String.valueOf(player))) {
String partikell = (String) yamlConfiguration.get(String.valueOf(player));
if (!(partikell == "NONE")) {
Particle partikel = (Particle) yamlConfiguration.get(String.valueOf(player));
World world = player.getWorld();
world.spawnParticle(partikel, event.getFrom(), 2, 0, 0.5, 0);
}
}
}
}

Sorry, I'm new to this forum and I don't know how to format code right.

The partikel.yml:

CraftPlayer{name=HenriPotter}: HEART