Avast icon is gone from the toolbar

Avast Mac Security
1

Hello,
I was browsing the internet and somehow the Avast Online Security icon from the toolbar is gone. I have tried installing avast again but i got this message: There was an error during installation of the extension ‘avast online security’.
I’m using safari 6.1.6.
Hope somebody can help me???

Greets

2

Which OS…?

3

I’m using Mac OS X version 10.7.5

4

OK, wait for one of the Mac guys.

5

I haven’t found the problem,

6

Hi, same problem here. The icon disappeared some months ago. And I get no notifications (e.g. for updates) anymore. The app and the virus pattern seem to be actual. I am working with a standard account in MacOS. When I am switching to my admin account, the icon is back again. Deinstall and reinstall does not solve the problem.
Avast Mac Security Pro 13.1
MacOS 10.13.1

Any ideas?

7

Oh sorry, this is not the same problem. I misunderstood something in the original post:

I do not mean the Online Security icon in Safari. I am talking about the taskbar icon in MacOS (on the top of the screen).