hs.createReferencedFile() throws out an error occasionally

[zhiyuli]

The same code works fine most of the time, but it throws out this error occasionally:
Not sure it is a hs_restclient issue or REST endpoint issue on hydroshare side:

hs.createReferencedFile(pid=resource_id, path='data/contents', name='landing_page.url', ref_url="https://www.byu.edu/")

Traceback (most recent call last):
File "C:/Users/Drew/PycharmProjects/czo/bulk-resource-creator/hs_json.py", line 128, in
hs.createReferencedFile(pid=resource_id, path='data/contents', name='landing_page.url', ref_url="https://www.byu.edu/")
File "C:\Users\Drew\Miniconda3\envs\py27\lib\site-packages\hs_restclient_init_.py", line 1111, in createReferencedFile
raise HydroShareHTTPException((url, 'POST', r.status_code))
File "C:\Users\Drew\Miniconda3\envs\py27\lib\site-packages\hs_restclient\exceptions.py", line 66, in init
self.status_msg = args[3]
IndexError: tuple index out of range