itemreviewed error in Google search console

Hello,

I get this error in the Google search console :

Object type not valid for the "itemReviewed" field
Click to expand...

This is concerned
Code:

"aggregateRating": {
            "@type": "AggregateRating",
            "ratingCount": "1",
            "ratingValue": "5"
        },

In this page : Cours vidéo JAVASCRIPT (Pierre Giraud) | Cocori Web | La communauté

Do i have to set something to prevent this kind of error ?
Thanks !

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