The facet does not exist

Error: The requested address '/documents/facets?amp%253BclearFacets=1&amp%253BnewFacet=creatorFacet%253DBrockmann%252C+Jorg&newFacet=evenementmarcFacet%253DJourn%25C3%25A9e+de+la+recherche' was not found on this server.