If the link is not working , please try downloading the file on PC using a browser . If it downloads it means that there is something wrong on your device's end.
When typing in your M3U link make sure your are not entering any space ” ” but “_” (undescore) instead and that you are not using your M3U link on other device.
Contact us if the link does not download on your browser after troubleshooting and provide us with your IP address (www.whatismyipaddress.com) and any other details about your device, ISP and app or software.