[נפתר] Duplicated menu item on a specific language

Background of the issue:
We have a duplicated menu item on the RO language, that we cannot control. I've followed the documentation, but the item does not appear in the original menu or the string translation. The site in question is קישור נסתר and the specific page is קישור נסתר. I am following the documentation at https://wpml.org/documentation/getting-started-guide/translating-menus/.

Symptoms:
Duplicated menu item on the RO language that does not appear in the original menu or the string translation.

Questions:
How can I remove the duplicated menu item on the RO language?
Why does the duplicated menu item not appear in the original menu or the string translation?