Update app.py

app.py

@@ -174,7 +174,7 @@ default_image = cfg["cover_path"] if cfg.get("cover_path", None) and os.path.exi
 with gr.Blocks(css=css,head=js,fill_height=True) as demo:
     with gr.Row(equal_height=False):
         with gr.Group():                
-            result = gr.Gallery(value=cfg.get("cover_path",""),
+            result = gr.Gallery(value=[cfg.get("cover_path","")],
               label="Result",  show_label=False, columns=1, rows=1, show_share_button=True,
               show_download_button=True,allow_preview=True,interactive=False, min_width=cfg.get("window_min_width", 340)
             )