Unable to finish an AI Course due a broken lab

[Akrev13]

Hello, im doing this lab: https://www.cloudskillsboost.google/course_templates/959/labs/471734

But when i get to the last step it doesn't checks my progress.

I've already completed the task.

Task 3. Describe video contents using Gemini

In this section, you are tasked with completing the python code in cells of a Jupyter notebook which leverage the Gemini LLM to describe contents of a video.

1. Remain in Vertex AI Workbench and proceed to the cell with the comment # Task 3.

2. Complete the required sections of the notebook gemini-explorer-challenge.ipynb under Task 3.

Click Check my progress to verify the objective.

Describe Video Contents.

Check my progress

Please ensure that you have completed the python code in cells of a Jupyter notebook to describe contents of a video of Gemini LLM

As you can see in the image, ive already done that part.

if you can help me, will be great, thank you in advance!