I have tried to fix this bug, but it seems like it’s integrated into the program. So for now, feel free to upload any photo to be your profile photo, follow the cropping instructions as stated and it should tell you that it was successfully uploaded / made your profile picture. At that time it will also show on your top banner.
Then simply go to any page of your profile or the website and it should work normally. If you are still having problems, please let me know and I will manually upload a pretty earth picture for your avatar to unlock your profile by hand.
HayaH