I can't change my xbox gamerpic

I can't chat with Microsoft Support so I don't know where to post my complaint.

I cannot change my game pic, I want to put a personalized picture from my device, I tried on the smartphone on the Xbox app, and Xbox console companion on windows 10 and it doesn't work. It says: "Sorry, we can't upload your picture right now, try again
in a little while" I tried 1 month ago and today and it displays the same.

I do not have any conduct warrants nor post any indecent pic.

:)