My Profile Photo is Broken!

https://laracasts.com/settings/account

My profile picture is broken.! When I update my Github acc and Twitter Acc. And I remove all are fine.!

https://unavatar.now.sh/github/https:/github.com/ShaungBhone?fallback=https%3A%2F%2Fs3.amazonaws.com%2Flaracasts%2Fimages%2Fforum%2Favatars%2Fdefault-avatar-25.png

is 404