Could not fetch author data: null value in column "affiliation_country" of relation "journals_cachedauthor" violates not-null constraint DETAIL: Failing row contains (b74b9a87-82fd-488a-8203-9080d382cfb6, A5030535058, Jean-Christophe Yoccoz, Société Mathématique de France, 117, 2773, , 2026-05-01 22:23:42.754679+00, 2026-05-01 22:23:42.754692+00, null, 28, 38, , ["Mathematical Dynamics and Fractals", "Advanced Differential Eq..., jean-christophe-yoccoz).