XML forms / news - delete button

In the RenderListItem form, I did included two buttons :

- edit button to edit the news => work perfectly

- delete button to delete the news => the problem

When I click on the delete button, I receive the following message :

"

XML - Forms

Item /BvD-it SEPNews/Others/0056c04e-7c12-2a10-8185-c74e6f577c75.xml does not exist

"

but the file do exist.

When I click on the OK button (at the end of the message), the news is effectively deleted.

So this is functionnaly working, but it comes with a non relevant error message.

Thank you for your help

Vincent