Could not fetch author data: null value in column "affiliation_country" of relation "journals_cachedauthor" violates not-null constraint DETAIL: Failing row contains (345d47a1-3825-4249-b7df-9c84ef55f04e, A5083265760, Yi Hu, State Key Laboratory of Low-Dimensional Quantum Physics, 70, 1380, 0000-0003-1073-7009, 2026-04-21 06:42:22.257922+00, 2026-04-21 06:42:22.257936+00, null, 20, 36, , ["Surface Chemistry and Catalysis", "Surface and Thin Film Pheno..., yi-hu-13).