Active Breadcrumbs

I still have a question about the new version Catch Responsive 4.6. The breadcrums are no longer active: https://jazzvereinkassel.de/jazzszene In version 4.2. the higher-level pages were linked: https://testwp5.jazzvereinkassel.de/jazzszene Is there a quick fix here too? Best regards, Birgit