FIelds showing up twice after last updates

Hi there,
In my website the fields are showing up twice. Everything is updated (WordPress, Woocommerce, theme, PPOM). Here a screenshot: https://prnt.sc/vgqhrb
I also tried with the solution you give here https://www.ads-software.com/support/topic/duplicate-fields-product-page/, but unfortunately nothing happens.

What is wrong in the plugin?
Many thanks