diff --git a/src/main/java/com/ai/da/service/impl/GenerateServiceImpl.java b/src/main/java/com/ai/da/service/impl/GenerateServiceImpl.java
index 6c2619d3..b21398cd 100644
--- a/src/main/java/com/ai/da/service/impl/GenerateServiceImpl.java
+++ b/src/main/java/com/ai/da/service/impl/GenerateServiceImpl.java
@@ -1713,12 +1713,9 @@ public class GenerateServiceImpl extends ServiceImpl<GenerateMapper, Generate> i
         QueryWrapper<SketchReconstruction> qw = new QueryWrapper<>();
         qw.eq("project_id", projectId);
         SketchReconstruction sketchReconstruction = sketchReconstructionMapper.selectOne(qw);
-        if (Objects.isNull(sketchReconstruction)) {
-            return null;
-        }
 
         SketchReconstructionVO vo = new SketchReconstructionVO();
-        if (Objects.nonNull(sketchReconstruction.getGenerateDetailId())) {
+        if (Objects.nonNull(sketchReconstruction) && Objects.nonNull(sketchReconstruction.getGenerateDetailId())) {
             GenerateDetail generateDetail = generateDetailMapper.selectById(sketchReconstruction.getGenerateDetailId());
             vo.setCollageSketchUrl(minioUtil.getPreSignedUrl(generateDetail.getUrl(), CommonConstant.MINIO_IMAGE_EXPIRE_TIME));
             vo.setLiked(generateDetail.getIsLike().equals((byte) 1));