Update main.py

main.py

@@ -30,6 +30,7 @@ import io
 import string
 import openai
 from io import BytesIO
+import nest_asyncio
 from datetime import datetime as dt
 from dotenv import load_dotenv
 from bs4 import BeautifulSoup
@@ -1577,5 +1578,5 @@ def custom_openapi():
     return app.openapi_schema
 
 app.openapi = custom_openapi
-
-app.add_exception_handler(HTTPException, custom_exception_handler)
+nest_asyncio.apply()
+app.add_exception_handler(HTTPException, custom_exception_handler)