I have uploaded some new photos to the folder "Uncategorized (unpublished) photos". But when I tried to transfer them to the folder "My photos" I brought up with a problem. I have filled a form and see an error (I will send the text of this error by e-mail). Then I have filled the form again without a sub-category and the data was saved, but I can't add the sub-category in reply of the enquiry.