ValueError: max() arg is an empty sequence

[brandburner]

Just upgraded from 0.6.2 to 0.71 and my script doesn't run anymore. I get the error:

ValueError: max() arg is an empty sequence

This is the function causing the issue:

def classify_content_by_speaker(content):
  doc = nlp(content)
  category = max(doc.cats, key=doc.cats.get)
  speaker = speaker_mapping.get(category, "Unknown Speaker")
  reason = f"Assigned to {speaker} based on LLM classification for category {category}."
  return {'speaker': speaker, 'reason': reason}

Downgrading back to 0.6.2 fixes the issue.