400 Bad Request

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

Cannot decode URL parameter filter: ['age_ranges%3A13-13%2Bavailable%3Afew%2Bmunicipalities%3AKoppigen%2Bmunicipalities%3AHasle-R%C3%BCegsau%2Bperiod_ids%3A7625122f6ca04575b52255eab6c42c9e%2Btags%3AMusic%2Bweekdays%3A3%2Bweekdays%3A5']