TAPAS fine-tuning

Dear I try to use the tapas model with the use of that code: Fine-tuning TapasForQuestionAnswering on SQA.ipynb - Colaboratory (google.com) .
I have created the same db structure as the one used in the example but when I try to use the TableDataset and ask for position 1 or grater I receive the error: ValueError: Couldn’t find all answers .

Can anyone explain why the error is presented?

Thank you.