MZ/DDG search results show strange URL
DDG search term entered is, as an example, "asus strix gtx 750ti 4g kaufen" (problem happens with any search term). Paging down in the list of results, I get many hits that a seemingly "routed" over a misused URL (which as the search term addended to it). Selecting such a result always brings up the same "strange" page with "pointers" to amazon. Leaving the page puts me automatically on the unwanted amazon page.
It is very annoying. Happens with more or less all search terms.
No virus, at least BitDefender full scan says so. I'm using private mode, HTTPS on and Ublock origin. Haven't changed my method of searching - this problem exist since a few weeks (MZ since v.86). Chrome and Opera work fine - they say either "503 error" or "page not found" ...
How can I fix this - maybe the uploaded image can help diagnose the problem?