Python Requests: 'The Authorization header is missing'

I'm trying to make an username checker for Ubisoft using Python's requests. When I run my code I always get a status code 200, which should indicate that the username is available, even when the username is taken. I checked the request link and it says:

{"moreInfo":"","errorCode":3,"httpCode":401,"errorContext":"Shipyard.Profiles.Services","message":"The Authorization header is missing","environment":"prod","additionalDetails":{},"transactionTime":"2021-05-24T17:27:50.9065561Z","transactionId":"5d4edaf2-8e8f-4e3f-9736-fce6aea82e32"}

However, I added 'Authorization':token to my code with token being an input you get from the authority website after logging in.

My code:

import requests
import json

def check():
    username = input("What name to check? :")
    print(" ")
    token = input("Enter token: ")

    r = requests.get("https://public-ubiservices.ubi.com/v2/profiles?nameOnPlatform=" + username + "&platformType=uplay", headers = {
                'Method':'GET',
                'Authority':'public-ubiservices.ubi.com',
                'Ubi-AppId':'c5393f10-7ac7-4b4f-90fa-21f8f3451a04',
                'Authorization': token,
                'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36',
                'Ubi-RequestedPlatformType':'uplay',
                })
    print(r.status_code)
    print(r.text)

print("Press ENTER to start checking")
input("")
check()

Edit: Added r.text

r.text gives this as output for what should be a taken username (username = test)

200
{"profiles":[{"profileId":"21067093-822e-497d-ae8a-5d171573f6c8","userId":"21067093-822e-497d-ae8a-5d171573f6c8","platformType":"uplay","idOnPlatform":"21067093-822E-497D-AE8A-5D171573F6C8","nameOnPlatform":"test"}]}

and r.text gives this as output for a what should be available username (username = test815581m)

200
{"profiles":[]}