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%3AInteressengemeinschaft%2Baktivitat%3AUnihockey%2Baktivitat%3AVolleyball%2Baktivitat%3AJungwacht %26 Blauring']