diff --git a/src/main/java/com/palnet/biz/api/acnt/cstmr/service/AcntCstmrService.java b/src/main/java/com/palnet/biz/api/acnt/cstmr/service/AcntCstmrService.java
index b8750c1..6729991 100644
--- a/src/main/java/com/palnet/biz/api/acnt/cstmr/service/AcntCstmrService.java
+++ b/src/main/java/com/palnet/biz/api/acnt/cstmr/service/AcntCstmrService.java
@@ -283,12 +283,16 @@ public class AcntCstmrService {
 		for(JwtGroupModel group : groupInfo) {
 			if(group.getGroupAuthCd().equals("CREATER")) {
 			PtyGroupBas groupEntity = ptyGroupBasRepository.findByGroupId(group.getGroupId());
-			groupEntity.setUseYn("N");
-			ptyGroupBasRepository.save(groupEntity);
+				if(!(groupEntity == null)) {
+					groupEntity.setUseYn("N");
+					ptyGroupBasRepository.save(groupEntity);
+				}
 			} 
 			PtyCstmrGroup cstmrEntity = ptyCstmrGroupRepository.findGroupId(group.getGroupId(), cstmrSno);
+			if(!(cstmrEntity == null)) {
 				cstmrEntity.setJoinYn("N");
 				ptyCstmrGroupRepository.save(cstmrEntity);
+			}
 		}
 		List<PtyCstmrGroup> AprvlEntity = ptyCstmrGroupRepository.changeGroupAprvlYn(cstmrSno);
 		for(PtyCstmrGroup Aprvl : AprvlEntity) {