edit the avatar photos not possible

During the edit process of turning the avatar photo, the picture will not appear anymore, also the selection menu will not appear anymore. Afterwards only the selection appears in the Edit menu: see original. This link leads to the error page 404.
What is the reason for the problem?
Attachments (2)
Attachments can only be downloaded by logged in users

This section can only be seen by users with a valid subscription.
If you have a valid subscription, please login now

Support is

The support team is online and will be able to answer your inquiries. Please stay calm, follow the rules and do not cross post.

We will attend to you as soon as we can.

Your time
Stack Ideas time