public String getUUIDString(String playerName) {
		if (dataConfig.getConfigurationSection(accountHolder) == null) {
			return null;
		}
		
		for (String uuid: dataConfig.getConfigurationSection(accountHolder).getKeys(false)) {
			String oldPlayerName = getPlayerName(uuid);
			
			if (uuid != null && oldPlayerName.equalsIgnoreCase(playerName)) {
				return uuid;
			}
		}
		
		return null;
	}