ValueError: 'Value' is not in list

[Araddotan]

Hi, I hope this is the right place to ask for assistance with the following ValueError, which I couldn't understand.
All the info is attached by screenshots.

It should be noted that I used Tableone before on the save dataframe and the same variables, and everything worked out fine.
Importantly, if I delete 'Ankylosis_of_joint' from the "categorical" list, the issue does not result, just appears as the same ValueError regarding a different column.

Thank you so much.
Great tool regardless, helped me a lot.

[chrisc3]

I am getting the same error when the data frame obviously has the column name. I've tried resetting the column index and renaming the labels to no avail.