Icon is not green (2 replies)

Hi.
I used WampServer 3.2 till 30-40 days ago.
Now the icon doesn't become green.
I tried to unistall Wampserver, checked for VC packages (all installed 32 and 64) and reinstall the latest version of WampServer 3.2.0 for 64 bit with PHP 7.4.0, Apache 2.4.41 and MySql 8.0.18.
System is Win 7 64 bit SP1
Is there Avast Internet Security working.
I tried to restart services but icon remain yellow (2 of 3 services started)
Eventviewer shows this error:
The Apache service named reported the following error:
>>> (OS 10013)Tentativo di accesso al socket con modalità non consentite dalle rispettive autorizzazioni di accesso. : AH00072: make_sock: could not bind to address 0.0.0.0:80

and then:

The Apache service named reported the following error:
>>> AH00451: no listening sockets available, shutting down

I tried to allow WampManager in out and in for all traffic inside Avast firewall

But nothing is changed.

What can I do?

Thanks