Could not fetch author data: null value in column "affiliation_country" of relation "journals_cachedauthor" violates not-null constraint DETAIL: Failing row contains (25f934f1-33a2-49ec-b271-bc6c7b72a073, A5109539977, Ziping Wu, Indiana University School of Medicine, 47, 2061, , 2026-04-09 19:17:44.639146+00, 2026-04-09 19:17:44.639161+00, null, 22, 28, , ["Advancements in Battery Materials", "Supercapacitor Materials ..., ziping-wu).