Discord oauth2 /users/@me/guilds error 401

Question

It is supposed to get all the guilds a user is joined in. It gets the bearer auth right, but it always errors with code 401. When using a external API (https://reqbin.com/) with auth to test the discord API it also gives the same error 401.

This is the code:

    let discordCode = window.location.href
    let code = discordCode.split("?code=")
    if(code && code.length > 0){
        discordCode = code[code.length-1]
    }

    console.log(discordCode)

    fetch("https://discord.com/api/users/@me/guilds",{method: 'GET',headers: {
        "Authorization": `Bearer  ${discordCode}`,
    }}).then(function(response) {
        response.json().then((result) => {
            console.log(result)
        })
    })

    /*fetch(`/discordProxy/${discordCode}`).then(function(response) {
        response.json().then((result) => {
            console.log(result)
        })
    })*/

    $("#connect_top_button").click(function(){
        window.location.href = "https://discord.com/api/oauth2/authorize?client_id=955915443405729844&redirect_uri=http%3A%2F%2F130.162.37.209%2Fservers&response_type=code&scope=identify%20guilds"
    })

The oauth2 scopes I gave to the app are: identify, email, guilds

Edit: Actually, it seems that all the auth tokens from the oauth2 don't work. Weird