Client error: `GET https://delta-v-ng.fact-finder.de/fact-finder/rest/v4/navigation/deltav_ch?channel=deltav_ch&event=navigation&sid=0ilupjjt13p7a3jf5g522uvm5k&format=json&query=&filter=CategoryPath%3ASchreibtische+und+Tische%2FSchreibtische&filter=Gestellform%253AT-Fu%25C3%259F&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"}