400 Bad Request

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

Cannot decode URL parameter keywords: ['angebot_kategorie%3AWorkshops zu Theater- und Tanzst%C3%BCcken%2Bangebot_kategorie%3AWeiterbildung%2Bangebot_kategorie%3ABeratung%2Bangebot_zielgruppe%3A10.-13.Klasse']