As a workaround I used as told in:
Comment 25 for bug 1241972
(Valentin Crone (va-crone) wrote on 2014-06-07:) with some modifications:
1 - open nautilus (File browser)
( normal usage of nautilus gave me an error, using with sudo is ok.)
sudo nautilus
2 - Go to: /usr/share/applications/
This folder contains all shortcuts of the menu.
Copy what you would, and paste where you would.
As a workaround I used as told in:
Comment 25 for bug 1241972
(Valentin Crone (va-crone) wrote on 2014-06-07:) with some modifications:
1 - open nautilus (File browser)
( normal usage of nautilus gave me an error, using with sudo is ok.)
sudo nautilus
2 - Go to: /usr/share/ applications/
This folder contains all shortcuts of the menu.
Copy what you would, and paste where you would.
This solved my problem. Thanks Valentin.
I hope the issue will not appear in the next LTS.