Script exit with exit code 255

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[17275] Failed to execute script tgnews
Traceback (most recent call last):
  File "tgnews.py", line 84, in <module>
  File "tgnews.py", line 71, in main
  File "threads.py", line 70, in group_in_threads
  File "pandas/core/frame.py", line 445, in __init__
  File "threads.py", line 70, in <genexpr>
  File "threads.py", line 48, in get_text
TypeError: object of type 'NoneType' has no len()