Update src/streamlit_app.py

src/streamlit_app.py

@@ -22,7 +22,7 @@ import os
 dotenv.load_dotenv()
 os.environ["OPENAI_API_KEY"] = os.getenv("OPENAI_API_KEY")
 
-payment_key=os.environ['Payment_Key']
+payment_key=os.getenv('Payment_Key')
 def load_local_lottie(path):
     with open(path, 'r') as file:
         return json.load(file)