error code 401 : You cant Access this route

[MoSi8160]

مشکل کلی در api
کلید دسترسی ساخته شده، ولی همه متد ها این ارور رو میدن
code 401 : You cant Access this route

نمونه کد :

import requests
URL = "https://api2.ippanel.com/api/v1/sms/send/webservice/single"
API = "XXXXXXXXXXXXXXXXXXXXXXXX"
def send_sms(phone:str, message):
    data = dict(recipient = [phone,],
                sender = "+989982003784",
                message = message)
    a = requests.post(URL,data, headers=dict(apikey=API))
    print(a.text)

if __name__ == "__main__":
    send_sms('XXXXXXXX', 'تست api شماره 1',)