Someone should please help solve this Array to string conversion when uploading Images

Hi am trying to save create a product from an admin panel it working fine, And now I want to add an image to a product but I keep getting this error "Array to string conversion", am using Orchid panel as administration site. Thanks for your help.

Here is my method.

public function createOrUpdate(Product $product, Request $request)
    {   
        $product->fill($request->get('product'))->save();
        $category = $request->get('category');
        $product->categories()->attach($category);

        Alert::success('Your product was successfully created!');

        return redirect()->route('platform.product.list');
    }

Here is my Model

class Product extends Model
{
    use AsSource;

    protected $fillable = [
        'name', 
        'slug',
        'details',
        'description',
        'image',
        'price'
    ];

    public function categories() {
        return $this->belongsToMany('App\Category');
    }

}

I have this in my ProductScreen.

Upload::make('product.image')
    ->title('Choose a picture for your product')
    ->groups('photo'),

via Chebli Mohamed