Update app.py

app.py

@@ -387,9 +387,10 @@ def gradio_reset(chat_state, img_list, path_list):
         chat_state.messages = []
     if img_list is not None:
         img_list = []
-    for path in path_list:
-        os.remove(path)
-    path_list.clear()
+    if isinstance(path_list, list):
+        for path in path_list:
+            os.remove(path)
+        path_list.clear()
     return None, gr.update(value=None, interactive=True), gr.update(placeholder='Upload your image and chat',
                                                                     interactive=True), chat_state, img_list