Cannot redeclare non static Filament\Widgets\StatsOverviewWidget::$heading as static App\Filament\Widgets\ParkingStats::$heading

Symfony\Component\ErrorHandler\Error\FatalError: Cannot redeclare non static Filament\Widgets\StatsOverviewWidget::$heading as static App\Filament\Widgets\ParkingStats::$heading in file /var/www/miron/app/Filament/Widgets/parkingStats.php on line 13 #0 {main}