RunTimeError

Hello there
I use pattern.de and installed in on Jupyter Notebook

I get the following error, when I try to run lemma-command in a for loop with massive (more than 10'000) tokens to be processed:

As there anything that I can do?

additional information:
Python 3.7.1 (default, Dec 14 2018, 13:28:58)
IPython 7.2.0

--- Logging error ---
Traceback (most recent call last):
File "/anaconda3/lib/python3.7/site-packages/pattern/text/init.py", line 609, in _read
raise StopIteration
StopIteration

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "", line 12, in getInfinitive
inf = lemma(verb_token)
File "/anaconda3/lib/python3.7/site-packages/pattern/text/init.py", line 2172, in lemma
self.load()
File "/anaconda3/lib/python3.7/site-packages/pattern/text/init.py", line 2127, in load
for v in _read(self._path):
RuntimeError: generator raised StopIteration

Start in pattern/text/init.py at _read, load, and lemma, using the reported RuntimeError and the 10,000-token loop as the reproduction context. Determine what behavior should occur when lemma is called repeatedly, then add a focused regression test and confirm it works in the stated Python and notebook environment.