'ladder' function not working

[teknofile]

Failed to run listener function (error: list indices must be integers or slices, not str)
Traceback (most recent call last):
  File "/home/teknofile/OpsBot/.venv/lib/python3.12/site-packages/slack_bolt/listener/thread_runner.py", line 120, in run_ack_function_asynchronously
    listener.run_ack_function(request=request, response=response)
  File "/home/teknofile/OpsBot/.venv/lib/python3.12/site-packages/slack_bolt/listener/custom_listener.py", line 50, in run_ack_function
    return self.ack_function(
           ^^^^^^^^^^^^^^^^^^
  File "/home/teknofile/OpsBot/app.py", line 183, in message_default
    leaderboard_msg += f"<@{leader['recipient']}>: {leader['carrots']} {PLURAL}\n"
                            ~~~~~~^^^^^^^^^^^^^
TypeError: list indices must be integers or slices, not str```