Client error: `GET https://delta-v-ng.fact-finder.de/fact-finder/rest/v4/navigation/deltav_de?channel=deltav_de&event=navigation&sid=tsam7cl4quhbo5qmc5149t88v0&format=json&query=&filter=CategoryPath%3ARegale%2C+Lager+und+Transport%2FRegalsysteme+f%C3%BCr+Werkstatt+und+Lager&filter=Material%253AEdelstahl+V2A&sort=SalesRanking:asc&query=%2A` resulted in a `400 Bad Request` response: {"error":"Bad Request","errorDescription":"The filter parameter must contain a : to split key and value"}