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%3ABaseball und Softball%2Baktivitat%3AFussball%2Baktivitat%3ATischtennis%2Baktivitat%3AChor%2Baktivitat%3AFutsal%2Baktivitat%3AUnterhaltung%2Baktivitat%3ABadminton%2Bart%3AJugend%2Bart%3ASprachf%C3%B6rderung']