Traceback (most recent call last):


 "/hummingbot/market/liquid/liquid_api_user_stream_data_source.py", line 73, in listen_for_user_stream

for trading_pair in self._trading_pairs


 "/hummingbot/market/liquid/liquid_api_user_stream_data_source.py", line 73, in <listcomp>

for trading_pair in self._trading_pairs


 "/opt/conda/envs/hummingbot/lib/python3.6/site-packages/pandas/core/indexing.py", line 1494, in __getitem__

return self._getitem_tuple(key)


 "/opt/conda/envs/hummingbot/lib/python3.6/site-packages/pandas/core/indexing.py", line 868, in _getitem_tuple

return self._getitem_lowerdim(tup)


 "/opt/conda/envs/hummingbot/lib/python3.6/site-packages/pandas/core/indexing.py", line 1017, in _getitem_lowerdim

return getattr(section, self.name)[new_key]


 "/opt/conda/envs/hummingbot/lib/python3.6/site-packages/pandas/core/indexing.py", line 1500, in __getitem__

return self._getitem_axis(maybe_callable, axis=axis)


 "/opt/conda/envs/hummingbot/lib/python3.6/site-packages/pandas/core/indexing.py", line 1913, in _getitem_axis

return self._get_label(key, axis=axis)


 "/opt/conda/envs/hummingbot/lib/python3.6/site-packages/pandas/core/indexing.py", line 137, in _get_label

return self.obj._xs(label, axis=axis)


 "/opt/conda/envs/hummingbot/lib/python3.6/site-packages/pandas/core/generic.py", line 3585, in xs

loc = self.index.get_loc(key)


 "/opt/conda/envs/hummingbot/lib/python3.6/site-packages/pandas/core/indexes/base.py", line 2658, in get_loc

return self._engine.get_loc(self._maybe_cast_indexer(key))


 "pandas/_libs/index.pyx", line 108, in pandas._libs.index.IndexEngine.get_loc


 "pandas/_libs/index.pyx", line 132, in pandas._libs.index.IndexEngine.get_loc


 "pandas/_libs/hashtable_class_helper.pxi", line 1601, in pandas._libs.hashtable.PyObjectHashTable.get_item


 "pandas/_libs/hashtable_class_helper.pxi", line 1608, in pandas._libs.hashtable.PyObjectHashTable.get_item
KeyError: 'quoted_currency'

Traceback (most recent call last):


 "site.py", line 132, in main


 "site.py", line 109, in run_entry_point


 "site-packages\calibre\utils\ipc\worker.py", line 195, in main


 "site-packages\calibre\gui2\convert\gui_conversion.py", line 33, in gui_convert_override


 "site-packages\calibre\gui2\convert\gui_conversion.py", line 26, in gui_convert


 "site-packages\calibre\ebooks\conversion\plumber.py", line 1064, in run


 "site-packages\calibre\customize\conversion.py", line 245, in __call__


 "site-packages\calibre\ebooks\conversion\plugins\pdf_input.py", line 51, in convert


 "site-packages\calibre\ebooks\pdf\pdftohtml.py", line 92, in pdftohtml
calibre.ebooks.ConversionError: pdftohtml failed with return code: 1
