Graphql in custom plugin

I created a custom plugin that has its own content types. In graphql playground I can write query for a content type but thr response is “Forbidden Access”
I have set all permissions for this content type and the problem still persists.

For example my plugin name is “navigation”, content type “Item”, so gql allows mi to write

query {
navigationItem {
data {
id
}
}
}

How to fix this?

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