Could not fetch author data: null value in column "affiliation_country" of relation "journals_cachedauthor" violates not-null constraint DETAIL: Failing row contains (624d585b-e83b-4a5d-80b6-efb553760fa5, A5001712807, Tianlu Liu, State Key Laboratory of Electrical Insulation and Power Equipmen..., 20, 3462, , 2026-04-14 18:00:34.850992+00, 2026-04-14 18:00:34.851006+00, null, 10, 10, , ["Vacuum and Plasma Arcs", "Obesity, Physical Activity, Diet", "..., tianlu-liu).