Builder + curator + multilanguage

has anyone managed to get all this things woks together?
i have mixed problem on this, i have a custom plugin and i need some help.

Basically the plugin create pages for the frontend
pages have blocks with the builder field
some block have images, i've implemented curator for this
but when i save the page content, i get

Filament\Forms\Components\BaseFileUpload::Filament\Forms\Components\{closure}(): Argument #2 ($value) must be of type array, string given

all plugins and filament are latest version
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