Add trial_id variable initialization in generate_item_image function

app.py

@@ -56,6 +56,7 @@ Focus on the item itself, ensuring it is fully described, and specify a plain, w
 
 @spaces.GPU(duration=75)
 def generate_item_image(object_t2i_prompt):
+    trial_id = ""
     for image in pipe.flux_pipe_call_that_returns_an_iterable_of_images(
         prompt=object_t2i_prompt,
         guidance_scale=3.5,