RecruitingBiological interventionNK Cells Infusions With Irinotecan, Temozolomide, and DinutuximabThis is a Phase 1 study with Phase 2 expansion cohort. Phase 1 will assess the safety and tolerability of universal donor TGFβi NK Cell in combination with irinotecan, temozolomide, and dinituximab. The phase 2 of the study will estimate the response to treatment.