Broken them no longer works properlu with woocommerce

A few years ago I purchased a Famitheme theme caller “Funiter” (sic). I can’t display woocommerce products in the default grid format. I activate the twenty-twenty one theme and that solved the problem. So the theme is the issue. However I can’t get any support from FamiThemes as they are defunct.

My question is if I purchase a new theme that is compatible with wpbakery and woocommerce, will I have to start building a new website from scratch?

When I switched theme, the products in woocommerce displayed correctly but the rest of the site just showed raw code. I would like to avoid that situation.

Any suggestions on how I can fix this issue found on this page. The product categories and product grid no longer work

Website is Products – Dura Housewares