BedWars | A BedWars minigame made for Minecraft Education Edition | Game Engine library

Recently I have been using Tailwind CSS to create a basic navbar for my site. I have it so a button disappears when you are on a small device but I would also like to have the item's centre when I use it on a small device. Here is the code that I have.

First of all, it's connecting to a url and just sanitizing it all in the Front-End. The Hypixel API works so, that you take the api url for the wanted request, in this case api.hypixel.net/player?name=USERNAME&key=APIKEY, and get back a big JSON file, which my code should sanitize. So, if you're using the Hypixel API, yeah you're sending the API-Key through the browser, but that is a security flaw in the Hypixle API and not in my code. The sole purpose of my code is to learn more about JavaScript an show it to others.

I'm working on an API access to the Hypixel API.
This gets me a JSON, in which I want to get a specific game, that was inputted in a field an is saved in a dict.

I'm trying to integrate this like this (console.log is only for test purposes, until I give back the data to HTML):

I'm making a bedwars plugin in spigot 1.8_R3, I'm currently working on the shop system, when you click on an item to purchase it, 4 iron ingots should be removed from the players inventory.

I have some basic code that uses fetch() to get a json from an api. Then I "sort" (idk if thats the right word) through the "layers" (again don't know the word) to get (for example) the number of kills they have gotten in a certain gamemode on a minecraft server. The problem is I would like to check another stat, for example games played. I can't just get the data from the api again because you can only get data on each player once per minute. The problem is when I try to use the result from the fetch() again it doesn't work as the promise has been fulfilled I think (I am really new to Java Script). Here is the code:

i'm making a bedwars plugin for a minecraft server, i'm actually at the custom death system, i have a code that works :

I'm making a bedwars plugin for my minecraft server, actually i have to coding a generator for drop item every 1 secs, i have no idea how to make that, with internet i have done this code :

I'm working on a bedwars plugin for minecraft server, everythings work but at the starting i want a 5sec timer before starting the game and show a title on the game, i worked on this code :

Get an error saying that my bound must be positive. The error comes from this line :
return mapNames[ThreadLocalRandom.current().nextInt(mapNames.length)];

The place where I set mapNames is here :
String[] mapNames = mapsConfiguration.getKeys(false).toArray(new String[]{});

The place where I set mapsConfigurationis here :
private ConfigurationSection mapsConfiguration;

And here is my method where it is :

The website I am trying to scrape is https://plancke.io/hypixel/player/stats/gamerboy80#BedWars. This website contains two