Avast Free prevent safari from loading webpages

Hi,

I’m having some issues on my macbook running macOS Catalina.
After installing Avast Free, Safari stopped loading webpages (loading bar get stuck toward the beginning).
Interestingly, Firefox would get stuck as well, but not Chrome.
A reboot fixes the problem, but it comes back everyday.
In addition, my mac stopped responding to the restart command, leaving a hard reboot as the only option.
I uninstalled Avast and the problem disappeared.

Any idea what the problem could be?

Thank you!

I'm having some issues on my macbook running [b]macOS Catalina[/b].
[b]Avast Mac Security >> [/b]https://forum.avast.com/index.php?board=5.0