To whom is reading this post, DO NOT play around with “feedback modal”, it’s a devil.
Sorry I just can’t wait for the tech support, I did everything I could, re-install theme, re-install woocommerce, de-activated all plugs and even delete all of them, tried all things I can think of….I gave up; I just reset my WordPress and database. Problem solved, and yes everything is gone, too. >_<
case closed, and I have to start all over again.