Infinite (Inf) MASE in zero-shot with Covid Deaths Dataset

[abizard]

Hi,
When using the dataset from get_dataset('covid_deaths') in a zero-shot scenario, it results in an infinite (Inf) MASE value. Could you please provide any suggestions for usage or preprocessing that would align with the expected input format? Upon previewing the dataset, it appears that there are many missing values.

Covid Deaths Dataset preview:

MASE value:

Thank you for your time.