Update app.py

app.py

@@ -420,7 +420,8 @@ sessions_table = Table(
 metadata.create_all(engine)
 DBSession = sessionmaker(bind=engine)
 db_session = DBSession()
-
+st.session_state['chat'] = ChatGoogleGenerativeAI(model="gemini-1.5-pro",temperature=0,api_key=api_key,convert_system_message_to_human=True)
+  
 # Sidebar navigation with model selection
 def sidebar():
     st.sidebar.header("Navigation")
@@ -433,8 +434,7 @@ def sidebar():
     )
     
           
-    st.session_state['chat'] = ChatGoogleGenerativeAI(model="gemini-1.5-pro",temperature=0,api_key=api_key,convert_system_message_to_human=True)
-  
+    
 
     return selected_page.split(" ", 1)[1]