Client error: `GET https://delta-v-ng.fact-finder.de/fact-finder/rest/v4/navigation/deltav_ch?channel=deltav_ch&event=navigation&sid=st5r8i5sj8lk4v12ci88b0evrs&format=json&query=&filter=CategoryPath%3ADrehst%C3%BChle%2FB%C3%BCrost%C3%BChle&filter=Price%253A%255B250%252C459%255D&sort=SalesRanking%3Aasc&query=%2A` resulted in a `400 Bad Request` response: {"error":"Bad Request","errorDescription":"The filter parameter must contain a : to split key and value"}