WooCommerce Products not showing on search page

Hello,
I have a problem with the search in my woodmart theme. I’m using “FiboSearch – AJAX Search for WooCommerce (Pro)”. I have used the checkbox in theme for automatically replace woodmart default search from header.

The results are showing through ajax search, but it’s not working when i press enter to show me the page.

The search page worked before, and then, for no reason the search page is not showing anything. It doesn’t find products.

I remember that i’ve had this issue before, but i’ve made an update for the theme and then worked.

Thank you!