First time I submitted a file only with 2 features: "id_contracte" "expenses" (72453 rows) and see Score: NA and status: test cases with no predictions
So I take my predictions and just copy and paste them into a file exactly downloaded and unpacked from the site (72453 rows). Then submitted, and the same story. Score: NA and status: test cases with no predictions.
Could you help me please what I make wrong
Your submission format is incorrect. Look at the task description: "Each row of the solution file should contain exactly one prediction". It means that you need to simply output the prediction in order with the "id contract" (there should not add in "id contract" in your submission).