Illuminate\Http\Request::Illuminate\Foundation\Providers\{closure}(): Argument #1 ($rules) must be of type array, Illuminate\Http\Request given ..

I got the following error when updating a form, Illuminate\Http\Request::Illuminate\Foundation\Providers{closure}(): Argument #1 ($rules) must be of type array, Illuminate\Http\Request given, called in D:\devwiz-developer\ipbt\vendor\laravel\framework\src\Illuminate\Macroable\Traits\Macroable.php on line 124 . I wonder what is the problem here ? Please help

The following are the code in the ProductsController.php,

/**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        $categories = DB::table('kategori_jualan')->get();
        $types = DB::table('jenis_jualan')->get();

        return Inertia::render('Produk/Create', [
            'categories' => $categories,
            'types' => $types
        ]);
    }

public function store(Request $request)
    {
        $request->validate([
            'name' => 'required',
            'images.*' => 'image|max:2048', // max file size: 2MB
            'documents.*' => 'file|max:2048', // max file size: 2MB
        ]);

        DB::table('products')->insert([
            'name' => $request['name'],
            'description' => $request['description'],
            'type_id' => $request['type_id'],
            'category_id' => $request['category_id'],
            'price' => $request['price'],
            'start_date' => $request['start_date'],
            'end_date' => $request['end_date'],
            'is_password' => $request['is_password'],
            'is_stamping' => $request['is_stamping'],
            'created_at' => now(),
        ]);

        // handle image uploads
        if ($request->hasFile('images')) {
            foreach ($request->file('images') as $image) {
                $path = $image->store('public/images');
                DB::table('images')->insert([
                    'product_id' => $request->id,
                    'image_path' => Storage::url($path),
                    'created_at' => now(),
                ]);
            }
        }

        // handle document uploads
        if ($request->hasFile('documents')) {
            foreach ($request->file('documents') as $document) {
                $path = $document->store('public/documents');
                DB::table('documents')->insert([
                    'product_id' => $request->id,
                    'document_path' => Storage::url($path),
                    'created_at' => now(),
                ]);
            }
        }

        return Redirect::route('produk.index');
    }

public function update(Request $request, $id)
    {
        $request->validate($request, [
            'name' => 'required',
            'images.*' => 'image|max:2048', // max file size: 2MB
            'documents.*' => 'file|max:2048', // max file size: 2MB
        ]);

        // delete existing images and documents
        DB::table('images')->where('product_id', $id)->delete();
        DB::table('documents')->where('product_id', $id)->delete();
        Storage::deleteDirectory('public/images/' . $id);
        Storage::deleteDirectory('public/documents/' . $id);

        DB::table('products')->where('id', $id)->update([
            'name' => $request->input('name'),
            'description' => $request->input('description'),
            'type_id' => $request->input('type_id'),
            'category_id' => $request->input('category_id'),
            'price' => $request->input('price'),
            'start_date' => $request->input('start_date'),
            'end_date' => $request->input('end_date'),
            'is_password' => $request->input('is_password'),
            'is_stamping' => $request->input('is_stamping'),
            'updated_at' => now(),
        ]);

        // handle image uploads
        if ($request->hasFile('images')) {
            foreach ($request->file('images') as $image) {
                $path = $image->store('public/images/' . $id);
                DB::table('images')->insert([
                    'product_id' => $id,
                    'image_path' => Storage::url($path),
                    'created_at' => now(),
                ]);
            }
        }

        // handle document uploads
        if ($request->hasFile('documents')) {
            foreach ($request->file('documents') as $document) {
                $path = $document->store('public/documents/' . $id);
                DB::table('documents')->insert([
                    'product_id' => $id,
                    'document_path' => Storage::url($path),
                    'created_at' => now(),
                ]);
            }
        }

        return Redirect::route('produk.index');
    }