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%3AInteressengemeinschaft%2Baktivitat%3AQuartierverein%2Baktivitat%3AVolleyball%2Baktivitat%3APolitische Partei%2Baktivitat%3APfadfinder']