diff --git a/IRaCIS.Core.Application/Service/ReadingCalculate/ReadingCalculateService.cs b/IRaCIS.Core.Application/Service/ReadingCalculate/ReadingCalculateService.cs
index 8a662bd95..6331b4015 100644
--- a/IRaCIS.Core.Application/Service/ReadingCalculate/ReadingCalculateService.cs
+++ b/IRaCIS.Core.Application/Service/ReadingCalculate/ReadingCalculateService.cs
@@ -123,9 +123,10 @@ namespace IRaCIS.Core.Application.Service.ReadingCalculate
         public async Task<AddTaskLesionAnswerFromLastTaskOutDto> AddTaskLesionAnswerFromLastTask(AddTaskLesionAnswerFromLastTaskInDto inDto)
         {
             var service = await this.GetService(inDto.VisitTaskId);
-            if (service != null)
+            var visitTaskInfo = await _visitTaskRepository.Where(x => x.Id == inDto.VisitTaskId).FirstNotNullAsync();
+            if (service != null&& visitTaskInfo.SourceSubjectVisitId!=null)
             {
-                var readingTaskState = await _visitTaskRepository.Where(x => x.Id == inDto.VisitTaskId).Select(x=>x.ReadingTaskState).FirstNotNullAsync();
+                var readingTaskState = visitTaskInfo.ReadingTaskState;
                 var result = new AddTaskLesionAnswerFromLastTaskOutDto();
 
                 if (readingTaskState == ReadingTaskState.WaitReading)