400 Bad Request

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

Cannot decode URL parameter keywords: ['sportangebot%3ARope-Skipping%2Bsportangebot%3ARh%C3%B6nrad%2Bsportangebot%3AKung Fu%2Bsportangebot%3AKlettern%2Bsportangebot%3ABoxen%2Bsportangebot%3AGymnastik und Tanz']