We have got several questions for the test data; yes, the test data is labelled. The final score will be calculated based on private test data.
So, there is nothing wrong with the test data shared with you. For more details about evaluation, please visit https://competitions.codalab.org/competitions/26027#learn_the_details-evaluation
For common error, please have a look at https://competitions.codalab.org/forums/22723/4505/
HASOC 2020 Organizer Team