Rocket Blocked by server

Help for Rocket IPTV Server.
i have three Avovs with iptv rockets. after many resets(iptv) nothing. Tried factory reset on all. Now getting blocked by server on two of them (TV online) and the on online+ will log on server. also invalid mac address on the online+. Getting mac address already exists on one of the online boxes. 255 days left on donations!
 
billdo2 send me your info please and i will check need donation number and order number and email you used pm me please not here