Breadcrumb is wrong. Brands and other pages redirect to homepage

On this website, there are several issues. -Breadcrumb is not showing when navigating in the product categories. See screenshot. -Breadcrumb is wrong on product pages. Shows the parent category instead of the product name at the end. See screenshot. -Brands redirect to homepage. Weber-MT is the brand here: [login to view URL] [login to view URL] documents also redirect to the homepage. In the url ".pdf" is gone. There are 2 pdf links on this page: [login to view URL]