cantact form dont send mail

Hello . The contact form has stopped working . does not send email

I added one year ago

wp_mail($SMTheme->get( 'contactform', 'email' ), 'Contatto web da '.$from, $msg);

but now stop working....

Hi!

Could you give us the URL of your website, please.

http://www.acquerisorgive.it/contatti/contatto-via-web/

Hi!

I've got this message after testing your contact form:
"Il tuo messaggio e' stato correttamente inviato"
This means that message haas been really send. Please, check up your mailbox and spam folder as well.

correct ... the message says this .. but the emails do not come .... I tried several e-mail , but always the same result : do not come. there are not even in spam folders

Perhaps, your server doesn't send these messages. Please, contact your hosting provider to figure this out.

i tryed with a plugin... (easy_contact_forms) and it work...
but i would use yours contact form...

We've sent you message by email. Please, check up your mail box.