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%3ABadminton%2Baktivitat%3AKinderbetreuung%2Baktivitat%3AVolleyball%2Baktivitat%3ASport%2Baktivitat%3AWohnen%2Bart%3ASicherheit']