To verify that you are a human, you will need to press and hold a button on your device for a few seconds. This step is designed to prevent automated programs (bots) from participating in online interactions. Once you have completed this task, you will be able to proceed with the rest of the process.
Source: https://www.sfchronicle.com/sports/article/manny-pacquiao-wins-night-not-fight-vs-barrios-20776764.php