In the terms and conditions edition page (https://11.chamilo.org/main/admin/legal_add.php) there is a content Block at the top and then there is a number of blocks corresponding to each point of the GDPR (Personal data collection, Personal data recording...).
When connecting as a user that needs to validate the terms and conditions (because he has never validated it or because the terms and conditions have changed since last time), just after login the user is presented with the terms and conditions to be validated. You can see an exemple here https://11.chamilo.org/main/auth/inscription.php?legal connection with the account tcfr/tcfr (it's the terms and conditions in french that are presented to this user).

Since there is no content in those blocks the title of the block should not be presented. Only show title and block if there is content.