Could not fetch author data: null value in column "affiliation_country" of relation "journals_cachedauthor" violates not-null constraint DETAIL: Failing row contains (87b27798-4079-4071-b72d-395f43859e76, A5108780624, Yuan Wu, State Key Laboratory for Advanced Metals and Materials, 64, 1774, , 2026-04-16 07:58:39.333466+00, 2026-04-16 07:58:39.33348+00, null, 23, 36, , ["High Entropy Alloys Studies", "High-Temperature Coating Behavi..., yuan-wu-9).