Prestashop theme alysum - add a new menu item

I wanted add an item to the menu in the alysum theme, but I was not able to do it in the FlexMenu module, because I always get an "Not Connect - Verify Network" alert, and clearing the prestashop cache did not help, so I decided to add it in the database. Simply open the db table ps_pk_flexmenu_menus and add a new record and so for ps_pk_flexmenu_menus_lang