Could not fetch author data: null value in column "affiliation_country" of relation "journals_cachedauthor" violates not-null constraint DETAIL: Failing row contains (9bc1fffb-673b-4671-9ad7-2939bf3c840b, A5110202032, Y. Nakada, Osaka Metropolitan University, 26, 6432, , 2026-04-17 16:13:44.366978+00, 2026-04-17 16:13:44.366992+00, null, 17, 17, , ["Particle physics theoretical and experimental studies", "Quant..., y-nakada).