Avast is blocking some really serious sites

Hi

Avast is blocking some really serious sites, like https://www.cloudflare.com/ and https://web.whatsapp.com/, in order to visit them I have to disable the “webshield”… Those two sites are real and they are not malware sites.

When a Bouncer (doorman) stop you he usually give a reason for doing that

So what did the message from avast say?

Google Chrome:

This site can’t be reached

www.cloudflare.com unexpectedly closed the connection.
Try:
Checking the connection
Checking the proxy and the firewall
Running Network Diagnostics
ERR_CONNECTION_CLOSED

Is there anything about it in the avast log file(s) ?
Are you using the latest avast version ?
Is the database the latest one ?