another error

app.py

@@ -12,6 +12,7 @@ def random_image():
     cat = random.choice(categories)
     print(cat)
     imnames = os.listdir('images/'+'Photo_portrait_of_a_'+choice.replace(' ',' ')+'/Seed_46267/')
+    print(imnames)
     ims = [(Image.open(name)) for name in imnames]
     print(ims)
     return ims
@@ -23,17 +24,16 @@ print(categories)
 with gr.Blocks() as demo:
     gr.Markdown("# Stable Diffusion Explorer")
     gr.Markdown("## TODO")
-    demo.load(random_image, None, images)
+
     with gr.Row():
         with gr.Column():
               choice = gr.Dropdown(categories, label = "Choose a first category", interactive=True)
-              gr.Gallery(images, label="Images"),
+              images = gr.Gallery(label="Images"),
         with gr.Column():
               gr.Textbox(label="Text prompt"),
               gr.Image(optional=True, label="Image prompt", type='filepath'),
 
-
-
+    demo.load(random_image, None, images)          
     choice.change(open_ims, [prompt], [images])
 
 demo.launch()