diff --git a/video-gen-api/app/api/v1/generation.py b/video-gen-api/app/api/v1/generation.py
index 75937ee1..83e949f9 100644
--- a/video-gen-api/app/api/v1/generation.py
+++ b/video-gen-api/app/api/v1/generation.py
@@ -198,6 +198,7 @@ async def optimize(
     current_user: User = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
+    record = None
     # Validate parameters based on generation type
     if req.gen_type == GenerationType.video:
         if req.duration not in DURATIONS:
@@ -285,10 +286,11 @@ async def optimize(
         await db.commit()
     except Exception as e:
         from app.services.error_codes import extract_error_message
-        record.status = "failed"
-        record.error_message = extract_error_message(e, "提示词")
-        await db.flush()
-        await db.commit()
+        if record:
+            record.status = "failed"
+            record.error_message = extract_error_message(e, "提示词")
+            await db.flush()
+            await db.commit()
         error_message = extract_error_message(e, "提示词")
         raise HTTPException(
             status_code=502,