Laravel Cashier (Stripe) and Filament Error: The payment attempt failed because of an invalid payment method.

I'm using:

"laravel/framework": "^11.0",
"livewire/livewire": "^3.4",
"laravel/cashier": "^15.3",
"filament/filament": "^3.2",

Plan.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Plan extends Model
{
    use HasFactory;

    /**
     * The attributes that are mass assignable.
     *
     * @var array<int, string>
     */
    protected $fillable = [
        'stripe_price',
        'name',
        'short_description',
        'price',
        'periodicity',
        'features',
        'is_featured',
    ];

    /**
     * Get the attributes that should be cast.
     *
     * @return array<string, string>
     */
    protected function casts(): array
    {
        return [
            'features' => 'array',
        ];
    }
}

0000_00_00_000000_create_plans_table.php

<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

return new class extends Migration
{
    /**
     * Run the migrations.
     */
    public function up(): void
    {
        Schema::create('plans', function (Blueprint $table) {
            $table->id();
            $table->string('stripe_price');
            $table->string('name');
            $table->tinyText('short_description', 73);
            $table->decimal('price', 10, 2);
            $table->enum('periodicity', ['monthly', 'yearly']);
            $table->string('features');
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     */
    public function down(): void
    {
        Schema::dropIfExists('plans');
    }
};

PlanSeeder.php

<?php

namespace Database\Seeders;

use App\Models\Plan;
use Illuminate\Database\Seeder;

class PlanSeeder extends Seeder
{
    /**
     * Run the database seeds.
     */
    public function run(): void
    {
        $plans = [
            [
                'stripe_price' => 'price_123xxxxxxxxxxx',
                'name' => 'Individual',
                'short_description' => 'Lorem Ipsum is simply dummy text.',
                'price' => 19.99,
                'periodicity' => 'monthly',
                'features' => [
                    'Feature 1',
                    'Feature 2',
                    'Feature 3',
                    'Feature 4',
                    'Feature 5',
                ],
            ],
            [
                'stripe_price' => 'price_456xxxxxxxxxxxxx',
                'name' => 'Individual',
                'short_description' => 'Lorem Ipsum is simply dummy text.',
                'price' => 129.99,
                'periodicity' => 'yearly',
                'features' => [
                    'Feature 1',
                    'Feature 2',
                    'Feature 3',
                    'Feature 4',
                    'Feature 5',
                ],
            ],
        ];

        foreach ($plans as $plan) {
            Plan::create($plan);
        }
    }
}

ListPlans.php

<?php

namespace App\Filament\App\Pages;

use Filament\Pages\Page;
use Filament\Forms\Contracts\HasForms;
use Filament\Tables\Contracts\HasTable;
use Filament\Forms\Concerns\InteractsWithForms;
use Filament\Tables\Concerns\InteractsWithTable;
use Filament\Tables\Table;
use Filament\Tables\Columns\TextColumn;
use Filament\Tables\Filters\SelectFilter;
use Filament\Tables\Actions\Action;
use Filament\Notifications\Notification;
use App\Models\Plan;

class ListPlans extends Page implements HasForms, HasTable
{
    use InteractsWithForms;
    use InteractsWithTable;

    // ...

    public function table(Table $table): Table
    {
        return $table
            ->query(Plan::query())
            ->columns([
                TextColumn::make('name'),

                TextColumn::make('short_description'),

                // ...
            ])
            ->actions([
                Action::make('subscribeNow')
                    ->label('Subscribe')
                    ->button()
                    ->action(function (SubscriptionPlan $plan) {
                        // Get the currently logged-in user
                        $user = auth()->user();

                        try {
                            // Create a new subscription using Laravel Cashier
                            $subscription = $user->newSubscription('default', $plan->stripe_price)
                                ->create();
                        } catch (Exception $exception) {
                            // Handle potential errors during subscription creation
                            Notification::make()
                                ->title($exception->getMessage())
                                ->danger()
                                ->persistent()
                                ->send();
                        }
                    }),
            ]);
    }
}