his is an open-label, dose-escalation/dose extension study to assess the safety, tolerability, and efficacy of LUCAR-G39P in the patient ≥ 18 years of age with relapsed or refractory B-cell non-Hodgkin lymphoma. Subjects who meet the eligibility criteria will receive a single dose of LUCAR-G39P injection. The study will include the following sequential phases: screening, pre-treatment (lymphodepleting chemotherapy), treatment, and follow-up.