lol-item API call giving undefined status code

[c3duan]

kayn.DDragon.Item .list() .version(config.riot_api_version) .callback((error, list) => { if (error) { console.error(error); return message.reply('sorry an api error occurred, please try again.'); }

            const items = list.data;
            const item = Object.entries(items).find(weapon => weapon.name.toLowerCase() === itemName);
            if (!item) {
                return message.reply('sorry no such item exists, please try again.');
            }
            const embed = new Discord.RichEmbed()
                .setTitle(item.name)
                .setDescription(item.description.replace(/\s*\<.*?\>\s*/g, ''))
                .setThumbnail(`http://ddragon.leagueoflegends.com/cdn/${config.riot_api_version}/img/item/${item.image.full}`)
                .addField(`${item.plaintext} into ${item.into.join('/')}`)
                .addField('Purchase Price', item.gold.total, true)
                .addField('Sell Price', item.gold.sell, true);
                
            message.channel.reply(embed);
        });`

{ statusCode: undefined, url: 'https://ddragon.leagueoflegends.com/cdn/8.18.2/data/en_US/item.json', error: TypeError: Cannot read property 'statusCode' of null at kayn.DDragon.Item.list.version.callback }