BLZBNTBNA000007D0 issue

Hi so my friend just recently gifted overwatch to me but when i try to open my gift through the battle net app i just get the BLZBNTBNA000007D0 issue and it tells me to keep reloading but it never works i also tried opening the gift through my email but that doesnt work either and just gives me a HTTP internal server 500 issue please help me ive tried everything and i dont know what to do