diff --git a/src/app/services/Repositorys/Agenda/mapper/EventDetailsMapper.ts b/src/app/services/Repositorys/Agenda/mapper/EventDetailsMapper.ts
index af0712093..6d84e4001 100644
--- a/src/app/services/Repositorys/Agenda/mapper/EventDetailsMapper.ts
+++ b/src/app/services/Repositorys/Agenda/mapper/EventDetailsMapper.ts
@@ -107,8 +107,8 @@ export class EventMapper {
           "DayOfWeek": null,
           "Month": null,
           "LastOccurrence": null,
-          "frequency": dto.eventRecurrence?.frequency,
-          "until": dto.eventRecurrence?.until
+          "frequency": dto?.eventRecurrence?.frequency,
+          "until": dto?.eventRecurrence?.until
       },
       "Attachments": dto.attachments.map( e => ({
         "Id": e.id,
diff --git a/src/app/services/Repositorys/Agenda/mapper/EventToApproveDetailsMapper.ts b/src/app/services/Repositorys/Agenda/mapper/EventToApproveDetailsMapper.ts
index 064698395..80804cd5d 100644
--- a/src/app/services/Repositorys/Agenda/mapper/EventToApproveDetailsMapper.ts
+++ b/src/app/services/Repositorys/Agenda/mapper/EventToApproveDetailsMapper.ts
@@ -170,8 +170,8 @@ export class EventToApproveDetailsMapper {
         ApplicationId: e.applicationId,
       })),
       eventRecurrence: {
-        frequency: dto.eventRecurrence?.frequency,
-        until: dto.eventRecurrence?.until
+        frequency: dto?.eventRecurrence?.frequency,
+        until: dto?.eventRecurrence?.until
       }
     }
   }
diff --git a/src/app/services/Repositorys/Agenda/model/eventDTOOutput.ts b/src/app/services/Repositorys/Agenda/model/eventDTOOutput.ts
index 95536657d..f0569401d 100644
--- a/src/app/services/Repositorys/Agenda/model/eventDTOOutput.ts
+++ b/src/app/services/Repositorys/Agenda/model/eventDTOOutput.ts
@@ -46,7 +46,7 @@ const EventRecurrenceSchema = z.object({
   LastOccurrence: null,
   frequency: z.number(),
   until: z.string()
-});
+}).nullable()
 
 
 export const EventOutputDTOSchema = z.object({