issue with Cribl Admin Stream

Hi,
I’m a certified Cribl Admin user and finished all the admin user labs and course.
currently working on Cribl Stream certification, I’m stuck with an issue I cant complete "Stream | Stream Projects and Security Lab” as it mentions that” In order to enroll, you must complete the following: CC User Final Exam Section 3. “
I have finalized all the CC user tutorials and exams and cant figure out how to solve this issue.
Please I need your support