Error: Submission Failed, Prediction file has less number of rows than expected

Hi, I’m practicing with past datathons and this is my first submission. I’ve made my prediction file and tried to submit it. However, I encountered this error while submitting:

“Prediction file has less number of rows than expected. Ensure the number of predictions in your submission is the same as the number of records in the test dataset.”

I was using Data Sprint 49 - Hospital Patient Survival datasets and made sure my prediction has 9330 rows (as was the test dataset) but the problem persits. Any advice would be greatly appreciated.