diff --git a/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs b/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs
index 9f01135d2..2ab0fb67d 100644
--- a/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs
+++ b/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs
@@ -1377,7 +1377,10 @@ namespace IRaCIS.Application.Services
         {
             await VerifyTaskIsSign(inDto.VisitTaskId);
 
-            var deleteRowInfo = await _readingTableAnswerRowInfoRepository.Where(x => x.Id == inDto.RowId).FirstNotNullAsync();
+
+
+            var deleteRowInfo = await _readingTableAnswerRowInfoRepository.Where(x => x.Id == inDto.RowId).FirstOrDefaultAsync();
+
             if (deleteRowInfo == null)
             {
                 return ResponseOutput.Ok(true);