null value in column "candidate_id" of relation "hr_applicant" violates not-null constraint DETAIL: Failing row contains (3, null, null, null, null, null, null, null, null, null, null, null, null, 4, 4, null, 0, null, null, normal, null, null, t, 2026-10-06 17:05:54.714977, null, null, 2026-10-06 17:05:54, null, 2026-10-06 17:05:54.714977, null, null, null, null, null, null, null, null, pending, f, f, null, null, f, null, null, null, null, null).