[QUESTION] The final quiz of Unit 1, always crashes with dataset not found

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However, if you prefer you can ask here, please **be specific**.

Dataset 'agents-course/unit_1_quiz' doesn't exist on the Hub or cannot be accessed.

The full log is:

```
Traceback (most recent call last):
File "/home/user/app/app.py", line 28, in
ds = load_dataset(EXAM_DATASET_ID, split="train")
File "/usr/local/lib/python3.10/site-packages/datasets/load.py", line 2129, in load_dataset
builder_instance = load_dataset_builder(
File "/usr/local/lib/python3.10/site-packages/datasets/load.py", line 1849, in load_dataset_builder
dataset_module = dataset_module_factory(
File "/usr/local/lib/python3.10/site-packages/datasets/load.py", line 1719, in dataset_module_factory
raise e1 from None
File "/usr/local/lib/python3.10/site-packages/datasets/load.py", line 1645, in dataset_module_factory
raise DatasetNotFoundError(f"Dataset '{path}' doesn't exist on the Hub or cannot be accessed.") from e
datasets.exceptions.DatasetNotFoundError: Dataset 'agents-course/unit_1_quiz' doesn't exist on the Hub or cannot be accessed.
Traceback (most recent call last):
File "/home/user/app/app.py", line 28, in
ds = load_dataset(EXAM_DATASET_ID, split="train")
File "/usr/local/lib/python3.10/site-packages/datasets/load.py", line 2129, in load_dataset
builder_instance = load_dataset_builder(
File "/usr/local/lib/python3.10/site-packages/datasets/load.py", line 1849, in load_dataset_builder
dataset_module = dataset_module_factory(
File "/usr/local/lib/python3.10/site-packages/datasets/load.py", line 1719, in dataset_module_factory
raise e1 from None
File "/usr/local/lib/python3.10/site-packages/datasets/load.py", line 1645, in dataset_module_factory
raise DatasetNotFoundError(f"Dataset '{path}' doesn't exist on the Hub or cannot be accessed.") from e
datasets.exceptions.DatasetNotFoundError: Dataset 'agents-course/unit_1_quiz' doesn't exist on the Hub or cannot be accessed.
```

Am I missing something trivial?