diff --git a/Learun.Framework.Ultimate V7/Learun.Framework.Module/Learun.Application.Module/Learun.Application.TwoDevelopment/EducationalAdministration/VaccinationInfo/VaccinationInfoService.cs b/Learun.Framework.Ultimate V7/Learun.Framework.Module/Learun.Application.Module/Learun.Application.TwoDevelopment/EducationalAdministration/VaccinationInfo/VaccinationInfoService.cs
index 62efac534..bf9480294 100644
--- a/Learun.Framework.Ultimate V7/Learun.Framework.Module/Learun.Application.Module/Learun.Application.TwoDevelopment/EducationalAdministration/VaccinationInfo/VaccinationInfoService.cs	
+++ b/Learun.Framework.Ultimate V7/Learun.Framework.Module/Learun.Application.Module/Learun.Application.TwoDevelopment/EducationalAdministration/VaccinationInfo/VaccinationInfoService.cs	
@@ -149,7 +149,10 @@ t.VaccineAddress,t.FirstNeedle,t.SecondNeedle,t.ThirdNeedle,t.NotReason,t.Remark
                 {
                     foreach (var item in data)
                     {
-                        item.Age = DateTime.Now.Year - Convert.ToInt32(item.CardId.ToString().Substring(6, 4));
+                        if (!string.IsNullOrEmpty(item.CardId))
+                        {
+                            item.Age = DateTime.Now.Year - Convert.ToInt32(item.CardId.ToString().Substring(6, 4));
+                        }
                     }
                 }
                 return data;