getDataChampion returning 403

[AleTassi]

Hi everyone
I'm trying to get the name of a champion from the id. Here's my code

public String getPlayedChampion(Summoner player) {
	
	try {
		CurrentGameInfo game = api.getActiveGameBySummoner(Platform.EUW, player.getId());
		
		CurrentGameParticipant participant = game.getParticipantByParticipantId(player.getId());
		
		Champion champ = api.getDataChampion(Platform.EUW, participant.getChampionId());
		
		return champ.getName();
	} catch (RiotApiException e) {
		log.warn("Error getPlayedChampion: {}", e.getMessage());
		return null;
	}
	
}

but the code always throw an error (403 - Forbidden).
I can't find the endPoint that the library try to call in the Riot Dev Site
How can i get the name of a champion?
Is there another java method/riot endpoint to get the name?
Thank you 😄

[KaluNight]

This endpoint has been deprecated and is no more usable. Now you need to use ddragon (https://ddragon.leagueoflegends.com/cdn/dragontail-9.7.1.tgz). It contains all the assets of the game. You can load all the champions data you need with the JSON file named "champion.json" with a library like Gson (https://github.com/google/gson).

[Pankraz01]

Yes this means, your api key is invalid. I had this a moment ago, so I need to create a new key...