[Risolto] Admin panel got translated when i switch the default language

Background of the issue:
I am developing a site at link nascosto and have changed the default language to Arabic. I have also changed the admin and edit language to English.

Symptoms:
Some of the menu items in the admin panel are still in Arabic even after changing the admin and edit language to English.

Questions:
How can I change the menu items in the admin panel back to English?