If it was working before then you shouldn't have to play with the mac address. just do a iptv reset and reload your box. Now if it's your first time setting it up then you need to send a picture of the sticker of your box with your donation number to papio and they will look after you
You probably should have posted this in your service subforum... There were some changes recently. If you use NFPS, the old server address is no longer used. You need to check your new portal assignment in the Donation Checker and adjust your apps accordingly.
https://papiao.is/main/search_nfps