Menu disappears

[krishnak]

My fusionpbx version is as below

Version	4.5.27
Git Information	Branch: master Commit: 1049b37e6be7a77ed0e862ce3b12116852db95e4 Origin: https://github.com/fusionpbx/fusionpbx Status: Your branch is up to date with 'origin/master'. +173 days ago
Project Path	/var/www/fusionpbx
Switch Version	1.10.3 (32bit)
PHP Version	7.3.31-1~deb10u1

When I follow the instructions for saraphone

2 Login as superadmin to your FusionPBX Web GUI,

Menu->Advanced->Upgrade, check:

    App Defaults
    Menu Defaults
    Permission Defaults

then click "Execute"

The menu on the top disappears, I have to close the browser and relogin to get it back