Undefined property: App\Filament\Pages\SettingsPage::$form

    class SettingsPage extends Page implements HasForms
{

    use InteractsWithForms;

    protected static ?string $navigationIcon = 'heroicon-o-cog-6-tooth';

    protected static string $view = 'filament.pages.settings-page';

    public ?array $data = [];

    public function mount(): void
    {
        $settings = ModelsSettings::first() ?? new ModelsSettings();
        $this->form->fill($settings->toArray());
    }

    public function form(Form $form): Form
    {
        return $form
            ->schema([
.....
            ])
            ->statePath('data')
            ->model(ModelsSettings::class);
    }

    protected function getFormActions(): array
    {
        return [
            Action::make('save')
                ->label('Save')
                ->submit('save'),
        ];
    }

    public function save()
    {
        $data = $this->form->getState();
        dd($data);
        $settings = ModelsSettings::first() ?? new ModelsSettings();
        $settings->fill($data);
        $settings->save();

        Notification::make()
            ->title('Settings saved successfully')
            ->success()
            ->send();
    }

   
}