Homepage redirect

Hi,

i’m using polylang for my site but, also if I select Italian like first language, my homepage is always /en.
I tryed also to deactivate and delete the plugin, clear the cache but the problem still remain.
This is my site: https://www.paganinifunghi.it/. If you click on this link yu will be redirected to https://www.paganinifunghi.it/en/.
Why? At the moment i don’t have the plugin installed…
Thank’s so much