Error: List name not in choices sheet

I can't convert my spreadsheet. I used this site and the site keeps showing this "Error: [row : 52] List name not in choices sheet: p1". Can someone help me please?

Welcome to the ODK forum, @louise.fontana! We're glad you're here. When you get a chance, please introduce yourself on this forum thread. I'd also encourage you to add a picture as your avatar because it helps build community!

It sounds like you have a select_one or select_multiple question that is referencing a list of options that doesn't exist. Can you post your form here?