Update app.py

app.py

@@ -117,8 +117,8 @@ def create_chat_engine(img_desc, api_key):
 def clear_chat():
     if "messages" in st.session_state:
         del st.session_state.messages
-    if "image_file" in st.session_state:
-        del st.session_state.image_file
+    if "image_data" in st.session_state:
+        del st.session_state.image_data
 
 # Callback function to clear the chat when a new image is uploaded
 def on_image_upload():
@@ -196,7 +196,7 @@ else:
             st.markdown(user_input)
 
         # Call the chat engine to get the response if an image has been uploaded
-        if image_file and user_input:
+        if image_data and user_input:
             try:
                 with st.spinner('Waiting for the chat engine to respond...'):
                     # Get the response from your chat engine