Error while using cenpy library in python - census

Question

I am working on a project where I need to use census data for a couple of towns in MA. For that, I am using cenpy library ASC data, but I got a key error. The same error happens even when I try the example code described for Chicago. Here is the example code I use and the error I see:
chicago = products.ACS(2017).from_place('Chicago, IL', level='tract',
variables=['B00002*', 'B01002H_001E'])
---------------------------------------------------------------------------
KeyError Traceback (most recent call last)
File ~\anaconda3\envs\oxe\lib\site-packages\cenpy\tiger.py:192, in ESRILayer.query(self, raw, strict, **kwargs)
191 try:
--> 192 features = datadict["features"]
193 except KeyError:
KeyError: 'features'
During handling of the above exception, another exception occurred:
KeyError Traceback (most recent call last)
Input In [4], in <cell line: 1>()
----> 1 chicago = products.ACS(2017).from_place('Chicago, IL', level='tract',
2 variables=['B00002*', 'B01002H_001E'])
File ~\anaconda3\envs\oxe\lib\site-packages\cenpy\products.py:791, in ACS.from_place(self, place, variables, level, return_geometry, place_type, strict_within, return_bounds, replace_missing)
788 variables = self._preprocess_variables(variables)
789 variables.append("GEO_ID")
--> 791 geoms, variables, *rest = super(ACS, self).from_place(
792 place,
793 variables=variables,
794 level=level,
795 return_geometry=return_geometry,
796 place_type=place_type,
797 strict_within=strict_within,
798 return_bounds=return_bounds,
799 replace_missing=replace_missing,
800 )
801 variables["GEOID"] = variables.GEO_ID.str.split("US").apply(lambda x: x[1])
802 return_table = geoms[["GEOID", "geometry"]].merge(
803 variables.drop("GEO_ID", axis=1), how="left", on="GEOID"
804 )
File ~\anaconda3\envs\oxe\lib\site-packages\cenpy\products.py:200, in _Product.from_place(self, place, variables, place_type, level, return_geometry, geometry_precision, strict_within, return_bounds, replace_missing)
197 else:
199 placer = "STATE={} AND PLACE={}".format(placerow.STATEFP, placerow.TARGETFP)
--> 200 env = env_layer.query(where=placer)
202 print(
203 "Matched: {} to {} "
204 "within layer {}".format(
(...)
208 )
209 )
211 geoms, data = self._from_bbox(
212 env.to_crs(epsg=4326).total_bounds,
213 variables=variables,
(...)
219 replace_missing=replace_missing,
220 )
File ~\anaconda3\envs\oxe\lib\site-packages\cenpy\tiger.py:198, in ESRILayer.query(self, raw, strict, **kwargs)
196 if details is []:
197 details = "Mapserver provided no detailed error"
--> 198 raise KeyError(
199 (
200 r"Response from API is malformed. You may have "
201 r"submitted too many queries, formatted the request incorrectly, "
202 r"or experienced significant network connectivity issues."
203 r" Check to make sure that your inputs, like placenames, are spelled"
204 r" correctly, and that your geographies match the level at which you"
205 r" intend to query. The original error from the Census is:\n"
206 r"(API ERROR {}:{}({}))".format(code, msg, details)
207 )
208 )
209 todf = []
210 for i, feature in enumerate(features):
KeyError: 'Response from API is malformed. You may have submitted too many queries, formatted the request incorrectly, or experienced significant network connectivity issues. Check to make sure that your inputs, like placenames, are spelled correctly, and that your geographies match the level at which you intend to query. The original error from the Census is:\\n(API ERROR 400:Unable to complete operation.([]))'