Django 3.2 LTS ALLOWED_HOSTS

Hi, I am a novice. I have installed django from the 1 click marketplace. I am getting the response from the ip url. Have added domain name and no problem ssh to the server. I have edited the settings and added the domain name but still getting: Invalid HTTP_HOST header: ‘www.mydomain.com’. You may need to add ‘www.mydomain.com’ to ALLOWED_HOSTS

Below is the setting.py:

def ip_addresses():
    ip_list = ['159.223.76.95', '2400:6180:0:d0::fb9:8001']
    for interface in netifaces.interfaces():
        addrs = netifaces.ifaddresses(interface)
        for x in (netifaces.AF_INET, netifaces.AF_INET6):
            if x in addrs:
                ip_list.append(addrs[x][0]['addr'])
    return ip_list

ALLOWED_HOSTS = ip_addresses('www.mydomain.com')