Hi, We were wondering if you could help us understand why our submission failed. We recieved the following message in the mail: "Invalid column names and/or types: Usecols do not match columns, columns expected but not found: ['was_early_preterm']. Expecting: {'participant': , 'was_early_preterm': , 'probability': }." But when we run the code locally we have all columns as required. Can you tell us what are the columns you see in the submission? The submission number is 9725883. Thanks, Omri