The facet does not exist

Error: The requested address '/documents/facets?amp%253BclearFacets=1&amp%253BnewFacet=theme.marc%253Dsciences+de+l%2527environnement&newFacet=subjectFacet%253DJourn%25C3%25A9e+de+la+recherche' was not found on this server.