Could not fetch author data: null value in column "affiliation_country" of relation "journals_cachedauthor" violates not-null constraint DETAIL: Failing row contains (06f2a752-956d-4bc1-836a-ba8de9a421cc, A5041876166, Mark Um, State Key Laboratory of Low-Dimensional Quantum Physics, 31, 1348, , 2026-04-25 07:48:33.037817+00, 2026-04-25 07:48:33.037834+00, null, 10, 10, , ["Quantum Information and Cryptography", "Quantum Mechanics and ..., mark-um).