Sidebar not showing

Hi,

I recently purchased the WooCommerce Product Builder, but the sidebar is not showing after placing everything in the widgets area, under the “WC Product Builder Sidebar”.

I placed a simple text widget in the first position to test and it shows, but all the other ones (filter and atributes) doesn’t show. Can you help me fix this?

URL: https://woos.dev.appx.pt/woo_product_builder/colar/