Update app.py

app.py

@@ -74,6 +74,11 @@ if not (CONTRACT_ADDRESS.startswith("0x") and len(CONTRACT_ADDRESS) == 42):
     config_valid = False
     config_errors.append("Invalid Smart Contract Address.")
 
+if db_type == "PostgreSQL":
+    if not all([pg_host, pg_port, pg_user, pg_password, pg_db]):
+        config_valid = False
+        config_errors.append("All PostgreSQL configuration fields must be filled.")
+
 if not config_valid:
     st.error("⚠️ **Configuration Errors:**")
     for error in config_errors:
@@ -261,13 +266,21 @@ passwords = [user.password for user in users]
 # Initialize Authenticator
 if users:
     authenticator = stauth.Authenticate(
-        names, usernames, passwords,
-        'citibank_demo_business_inc_ai_crypto', 'abcdef', cookie_expiry_days=1
+        names, 
+        usernames, 
+        passwords,
+        'citibank_demo_business_inc_ai_crypto',  # cookie_name
+        'abcdef',                                 # key
+        1                                         # cookie_expiry_days
     )
 else:
     authenticator = stauth.Authenticate(
-        [], [], [],
-        'citibank_demo_business_inc_ai_crypto', 'abcdef', cookie_expiry_days=1
+        [], 
+        [], 
+        [],
+        'citibank_demo_business_inc_ai_crypto',  # cookie_name
+        'abcdef',                                 # key
+        1                                         # cookie_expiry_days
     )
 
 name, authentication_status, username = authenticator.login('Login', 'main')