Could not fetch author data: null value in column "affiliation_country" of relation "journals_cachedauthor" violates not-null constraint DETAIL: Failing row contains (c6b90594-95b4-462c-b8d7-2996e408fed2, A5071393368, Xi Bai, Changchun University of Technology, 2, 61, , 2026-04-07 21:16:26.971727+00, 2026-04-07 21:16:26.971741+00, null, 2, 1, , ["Metal-Organic Frameworks: Synthesis and Applications", "Advanc..., xi-bai-1).