an issue to log into robinbood today

[weijiazhang99]

I experienced an issue to log into my account even with correct authentication code today. Here is the error message:
"Error in request_post: HTTPSConnectionPool(host='api.robinhood.com', port=443): Max retries exceeded with url: /oauth2/token/ (Caused by NameResolutionError("<urllib3.connection.HTTPSConnection object at 0x10f716c50>: Failed to resolve 'api.robinhood.com' ([Errno 8] nodename nor servname provided, or not known)"))
Traceback (most recent call last):
File "", line 1, in

raise Exception('Error: Trouble connecting to robinhood API. Check internet connection.')

Exception: Error: Trouble connecting to robinhood API. Check internet connection.

"