code to repeat issue:
boxscore = Boxscore("202109090tam")

Seeing an error originating from line 784 in nfl/boxscore.py
value = self._parse_name(short_field, boxscore)

pyquery ParserError: Document is empty

Full stack trace should be easy to get by running that first line of code. Let me know if you need any more information to describe the issue.