diff --git a/importfunc/import_user_id_map.go b/importfunc/import_user_id_map.go
index f6ce888..863737e 100644
--- a/importfunc/import_user_id_map.go
+++ b/importfunc/import_user_id_map.go
@@ -22,13 +22,14 @@ func ImportUserIdMap() {
 	}
 	ctx := context.Background()
 
-	for i := 0; i < 100; i++ {
-		pathurl := fmt.Sprintf("/app/data_prep/file/user_id_map%v.txt", i)
+	for i := 1; i < 100; i++ {
 		go func(i int) {
 			fmt.Printf("Importing %dth", i)
+			pathurl := fmt.Sprintf("/app/data_prep/file/user_id_map%v.txt", i)
 			infile, err := os.Open(pathurl)
 			if err != nil {
 				fmt.Printf("Open File Err : %v", err)
+				return
 			}
 			reader := bufio.NewReader(infile)
 			userIdMaps := make([]*dbstruct.UserIdMap, 0)