Does Avast P.S. interfere with email client? Thunderbird stopped working

Hi. My first post here.
I have installed Avast Premium Security in my Lenovo notebook.
The day after the email client (Mozilla Thunderbird) stopped working.
More specifically TB does not open anymore.
On the TB forum I have been advised, among other things, that maybe the newly installed antivirus may have interfered with the email client, maybe through a block or quarantine of vital files.
Any experience of bad interaction between Avast and Thunderbird out there?
–Carlo