Contact form Problem

Hi folks Im trying to configure my contact form and once I click on the send button no emails are sent if I dont make the functions.php tweak bellow, I’m using the WP-Mail-SMTP plugin, I can receive new orders emails, test emails, even the customer receive their invoices, order status changes, etc.

The contact form was the only thing not working at all, so I tried to add the code in functions.php, as other have requested

add_filter(‘avf_form_from’, ‘avia_change_from’, 10, 3);

function avia_change_from($from,$new_post,$params){
$from = (see private box A address );
return $from;
}

And then in the form I emulate a customer so I enter another some real data, lets say
Name: Test User, Email: (see private box B address), message: “testing contact form”

Now when I click Send, I should receive one email and the customer have to receive a “we received your request” stile email message, but I receive both email messages in my “A” address, so the customer is not receiving its email.