In google doesn't appear my logo, but that of Altervista

I set my logo in my wordpress theme more than a month ago but on google appears the altervista logo. What should I do?

I can see the right favicon:

https://i.imgur.com/5tS0WsHm.png

Could you show where you see the wrong favicon?

Bye!

https://drive.google.com/file/d/1xsA...ew?usp=sharing

https://drive.google.com/file/d/1xvo...ew?usp=sharing

All results show the altervista logo on the left

https://forum.it.altervista.org/i-se...ml#post1487073

Bye!