Could not fetch author data: null value in column "affiliation_country" of relation "journals_cachedauthor" violates not-null constraint DETAIL: Failing row contains (6e3587e9-4b86-4855-99f3-cdf14e4134fe, A5100459710, Fangfang Chen, Xiamen Medical College, 69, 2415, 0000-0001-9097-5036, 2026-04-27 08:56:07.270219+00, 2026-04-27 08:56:07.270235+00, null, 23, 43, , ["RNA modifications and cancer", "Cancer-related molecular mecha..., fangfang-chen-8).