Could not fetch author data: null value in column "affiliation_country" of relation "journals_cachedauthor" violates not-null constraint DETAIL: Failing row contains (75fe6bb3-43eb-44da-b76c-c98f796a782a, A5073614894, Nigel Williams, NHS England, 634, 49547, 0000-0003-1177-6931, 2026-04-17 12:41:55.946446+00, 2026-04-17 12:41:55.946458+00, null, 87, 244, , ["Genetic Associations and Epidemiology", "Parkinson's Disease M..., nigel-williams-1).