No able to complete Vertex AI prompt engineering lab

[kartik28]

Hi team , i am going through google cloud boost training as part of gen ai exchange program .
i cannot able to complete the below lab . it is not saving my prompt , can anyone help me 

course name : Prompt Design in Vertex AI
lab name : Get Started with Vertex AI Studio
Task 5. Explore Vertex AI Media StudioError screenshot when trying to generate a video