The facet does not exist

Error: The requested address '/documents/facets?newFacet=personne.sujet.marc%253DFran%25C3%25A7ois+Abb%25C3%25A9+Decarroux+%2528directeur+HES-SO+Gen%25C3%25A8ve&clearFacets=1' was not found on this server.