400 Bad Request

The server could not comply with the request since it is either malformed or otherwise incorrect.

Cannot decode URL parameter keywords: ['art%3Afachtechn. verantwortliche Person%2Babgabeort%3ASteinhausen%2Babgabeort%3ANeu%C3%A4geri%2Babgabeort%3ANeuheim%2Babgabeort%3AZug']