Fix KeyError

✅ Solution

KeyError in pandas arises when trying to access a column or index label that doesn't exist in the DataFrame or Series. To fix this, double-check your column/index name for typos or incorrect casing, ensuring it exactly matches what's in your data. If slicing, ensure the slice range exists within the index or column names. Consider using `df.columns` or `df.index` to verify the available labels.