raise KeyError(f"Column not found: {key}") KeyError: 'Column not found: False'

This error message indicates that the code is trying to access a column in a data structure using the key "False", but this key does not exist in the data structure.

To fix this error, you should check the code where the error occurs and make sure that you are using the correct key to access the desired column. It's possible that the key was misspelled or that the data structure has been modified since the code was last run.