Key error when trying to get a value in a Pandas Dataframe

I have a pandas dataframe df that has a column with the name "datetime". Now I would like to get a specific value from it. I tried the solutions suggested here How to get a value from a cell of a dataframe? but I always get an "KeyError: ‘datetime’"

Here is a screenshot of the dataframe

And here is what I tried:

print("df.at[5,'datetime']", df.at[5,"datetime"])
print("df.iloc['datetime', 5]", df.iloc[5]["datetime"])

Any idea, why I get this error and how to fix this problem?

>Solution :

It looks like datetime is your index column so you should be able to access it through df.index[5]