Traceback (most recent call last):


 "/home/ubuntu/crypto_cro-btc/hummingbot/core/utils/async_utils.py", line 9, in safe_wrapper

return await c


 "/home/ubuntu/crypto_cro-btc/hummingbot/core/data_type/order_book_tracker.py", line 174, in _init_order_books

self._order_books[trading_pair] = await self._data_source.get_new_order_book(trading_pair)


 "/home/ubuntu/crypto_cro-btc/hummingbot/connector/exchange/crypto_com/crypto_com_api_order_book_data_source.py", line 76, in get_new_order_book

snapshot: Dict[str, Any] = await self.get_order_book_data(trading_pair)


 "/home/ubuntu/crypto_cro-btc/hummingbot/connector/exchange/crypto_com/crypto_com_api_order_book_data_source.py", line 65, in get_order_book_data

raise IOError(
OSError: Error fetching OrderBook for CRO-BTC at crypto_com. HTTP status is 504.

Traceback (most recent call last):

 "/usr/lib64/python2.7/site-packages/nose/loader.py", line 413, in loadTestsFromName
addr.filename, addr.module)

 "/usr/lib64/python2.7/site-packages/nose/importer.py", line 47, in importFromPath
return self.importFromDir(dir_path, fqname)

 "/usr/lib64/python2.7/site-packages/nose/importer.py", line 94, in importFromDir
mod = load_module(part_fqname, fh, filename, desc)

 "/usr/lib64/python2.7/site-packages/sklearn/tests/test_pipeline.py", line 16, in <module>
from sklearn.svm import SVC

 "/usr/lib64/python2.7/site-packages/sklearn/svm/__init__.py", line 13, in <module>
from .classes import SVC, NuSVC, SVR, NuSVR, OneClassSVM, LinearSVC

 "/usr/lib64/python2.7/site-packages/sklearn/svm/classes.py", line 1, in <module>
from .base import BaseLibLinear, BaseSVC, BaseLibSVM

 "/usr/lib64/python2.7/site-packages/sklearn/svm/base.py", line 8, in <module>
from . import libsvm, liblinearImportError: /usr/lib64/python2.7/site-packages/sklearn/svm/liblinear.so: undefined symbol: daxpy_