FIRST PROBLEM :
When the user clicks on "update picture" there is a new window that opens allowing him to upload and crop his picture. Until there, no problem.
When the user clicks on "crop the picture" to finalize it, then a button called "close" is displayed under the picture.
This button doesn't work, nothing happens when the user clicks on it and he stays blocked on a URL called : mywebsite/wp-admin/admin-ajax.php?action=user_avatar_add_photo&step=3&uid=2
SECOND PROBLEM :
When the user wants to Remove his existing picture, in his profile admin when clicking on "Remove", the page is just refreshed and nothing happens.
=== PLEASE HELP ===