alpaca_trade_api.rest.APIError: account not found for 97b24XXXXXXXXXXXX

I'm new to alpacha and am just trying to test this out... getting the following error:

```
Traceback (most recent call last):
File "C:\Users\XXXX\AppData\Local\Programs\Python\Python38\lib\site-packages\alpaca_trade_api\rest.py", line 140, in _one_request
resp.raise_for_status()
File "C:\Users\XXXX\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\models.py", line 941, in raise_for_status
raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 404 Client Error: Not Found for url: https://paper-api.alpaca.markets/v2/account

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "algo.py", line 399, in
run(get_tickers(), market_open, market_close)
File "algo.py", line 92, in run
portfolio_value = float(api.get_account().portfolio_value)
File "C:\Users\XXXX\AppData\Local\Programs\Python\Python38\lib\site-packages\alpaca_trade_api\rest.py", line 178, in get_account
resp = self.get('/account')
File "C:\Users\XXXX\AppData\Local\Programs\Python\Python38\lib\site-packages\alpaca_trade_api\rest.py", line 156, in get
return self._request('GET', path, data)
File "C:\Users\XXXX\AppData\Local\Programs\Python\Python38\lib\site-packages\alpaca_trade_api\rest.py", line 119, in _request
return self._one_request(method, url, opts, retry)
File "C:\Users\XXXX\AppData\Local\Programs\Python\Python38\lib\site-packages\alpaca_trade_api\rest.py", line 148, in _one_request
raise APIError(error, http_error)
alpaca_trade_api.rest.APIError: account not found for 97b24XXXXXXXXXXXX

```