400 Bad Request

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

Cannot decode URL parameter keywords: ['aktivitat%3AQuartierverein%2Baktivitat%3ABadminton%2Baktivitat%3APolitische Partei%2Baktivitat%3ATheater%2Baktivitat%3AChor%2Bart%3AJugend']