Facing JSONDecodeError

Question

I am trying to connect to foursquare api to extract certain details but facing JSONDecodeError: Expecting value: line 1 column 1 (char 0)

Below is my code(python3);

import json, requests

#using forsquare api
client_id = 'ABC'
client_secret = 'XYZ'
version = '20220508'
limit = 30
radius = 500


latitude = df_street_pcode.Latitude
longitude = df_street_pcode.Longitude
print(latitude, longitude)

url = 'https://api.foursquare.com/v3/places/search?client_id={}&client_secret={}&ll={},{}&v={}&radius={}&limit={}'\
                .format(client_id, client_secret, latitude, longitude, version, radius, limit)
 
results = requests.get(url).json()
results

Below is the error;

> --------------------------------------------------------------------------- JSONDecodeError                           Traceback (most recent call
> last) <ipython-input-63-42900a9adb9b> in <module>
>      16                 .format(client_id, client_secret, latitude, longitude, version, radius, limit)
>      17 
> ---> 18 results = requests.get(url).json()
>      19 results
> 
> /usr/local/anaconda/lib/python3.6/site-packages/requests/models.py in
> json(self, **kwargs)
>     887                 try:
>     888                     return complexjson.loads(
> --> 889                         self.content.decode(encoding), **kwargs
>     890                     )
>     891                 except UnicodeDecodeError:
> 
> /usr/local/anaconda/lib/python3.6/json/__init__.py in loads(s,
> encoding, cls, object_hook, parse_float, parse_int, parse_constant,
> object_pairs_hook, **kw)
>     352             parse_int is None and parse_float is None and
>     353             parse_constant is None and object_pairs_hook is None and not kw):
> --> 354         return _default_decoder.decode(s)
>     355     if cls is None:
>     356         cls = JSONDecoder
> 
> /usr/local/anaconda/lib/python3.6/json/decoder.py in decode(self, s,
> _w)
>     337 
>     338         """
> --> 339         obj, end = self.raw_decode(s, idx=_w(s, 0).end())
>     340         end = _w(s, end).end()
>     341         if end != len(s):
> 
> /usr/local/anaconda/lib/python3.6/json/decoder.py in raw_decode(self,
> s, idx)
>     355             obj, end = self.scan_once(s, idx)
>     356         except StopIteration as err:
> --> 357             raise JSONDecodeError("Expecting value", s, err.value) from None
>     358         return obj, end
> 
> JSONDecodeError: Expecting value: line 1 column 1 (char 0)

Can you please help me resolve this error. I have very limited knowledge in this area. YOu help is highly appreciated.