I could not continue the course

''Congratulations! You have successfully completed week one of WordPress Multisite Masterclass.

You have taken the first step in understanding the fundamental concepts of WordPress Multisite . You’re on your way to becoming a full-fledged Multisite master!

You can now proceed to Week 2: Getting Started. Click the arrow on the right side of the screen to begin.''

Then,I was told when I wanted to enter the class of Week 2

In order to complete Week 2: Getting Started, you are required to read through the tutorial, take part in the weekly discussion with instructor Rachel McCollin, and complete a multiple choice quiz with a score of 100%.

Good luck!

What to do?