@isay81 Hi, sorry to hear that.
Have you been a victim of the attack? If that is the case, this might be the reason why the menu is not working anymore.
To fix that, you have to go to the settings and double check all the values and remove all of them which look suspicious.
Please have especially a close look at the json in the “Import/Export” Setting.
To see all the settings in the database you can use this query:
SELECT * FROM options
where option_name like “%nsc_bar%”
I would be happy to assist if you have a test system, where I can debug this behaviour.