Update app.py

app.py

@@ -86,9 +86,8 @@ class GeminiEmbeddings(Embeddings):
 
 vectorstore_global = None
 
-# Initialize feedback list
 if "feedback_log" not in st.session_state:
-    st.session_state.feedback_log = []
+    st.session_state["feedback_log"] = []
 
 
 def preload_modtran_document():
@@ -346,7 +345,9 @@ def main():
     }.items():
         if key not in st.session_state:
             st.session_state[key] = default
-
+    if "feedback_log" not in st.session_state:
+        st.session_state.feedback_log = []
+        
     st.header("Chat with MODTRAN Documents 📄")
 
     if not st.session_state.chat_ready: