A panel has been registered without an `id()`.

<?php
class AdminPanelProvider extends PanelProvider
{
    public function panel(Panel $panel): Panel
    {
        return $panel
            -     >viteTheme('resources/css/filament/admin/theme.css')
            ->plugins([
                SpotlightPlugin::make(),
                FilamentMediaLibrary::make()->conversionResponsive(false)
                    ->conversionMedium(false)
                    ->conversionSmall(false),
                ThemesPlugin::make(),
                FilamentFullCalendarPlugin::make()
                    ->selectable(true)
                    ->editable(true)
                    ->config([
                        'validRange' => ['start' => Carbon::now()->toDateString()],
                        'eventOverlap' => false
                    ]),
            ])
            ->default()
            ->id('admin')
            ->path('admin')
            ->login(Login::class)
            ->discoverResources(in: app_path('Filament/Resources'), for: 'App\\Filament\\Resources')
            ->discoverPages(in: app_path('Filament/Pages'), for: 'App\\Filament\\Pages')
            ->pages([
                Pages\Dashboard::class,
            ])
            ->discoverWidgets(in: app_path('Filament/Widgets'), for: 'App\\Filament\\Widgets')
            ->widgets([
                Widgets\AccountWidget::class,
                Widgets\FilamentInfoWidget::class,
            ])
            ->colors([
                'danger' => Color::Rose,
                'gray' => Color::Gray,
                'info' => Color::Blue,
                'primary' => Color::Indigo,
                'success' => Color::Emerald,
                'warning' => Color::Orange,
            ])
            ->authMiddleware([
                Authenticate::class,
            ]);
    }
}

<?php
class AdminPanelProvider extends PanelProvider
{
    public function panel(Panel $panel): Panel
    {
        return $panel
            -     >viteTheme('resources/css/filament/admin/theme.css')
            ->plugins([
                SpotlightPlugin::make(),
                FilamentMediaLibrary::make()->conversionResponsive(false)
                    ->conversionMedium(false)
                    ->conversionSmall(false),
                ThemesPlugin::make(),
                FilamentFullCalendarPlugin::make()
                    ->selectable(true)
                    ->editable(true)
                    ->config([
                        'validRange' => ['start' => Carbon::now()->toDateString()],
                        'eventOverlap' => false
                    ]),
            ])
            ->default()
            ->id('admin')
            ->path('admin')
            ->login(Login::class)
            ->discoverResources(in: app_path('Filament/Resources'), for: 'App\\Filament\\Resources')
            ->discoverPages(in: app_path('Filament/Pages'), for: 'App\\Filament\\Pages')
            ->pages([
                Pages\Dashboard::class,
            ])
            ->discoverWidgets(in: app_path('Filament/Widgets'), for: 'App\\Filament\\Widgets')
            ->widgets([
                Widgets\AccountWidget::class,
                Widgets\FilamentInfoWidget::class,
            ])
            ->colors([
                'danger' => Color::Rose,
                'gray' => Color::Gray,
                'info' => Color::Blue,
                'primary' => Color::Indigo,
                'success' => Color::Emerald,
                'warning' => Color::Orange,
            ])
            ->authMiddleware([
                Authenticate::class,
            ]);
    }
}