composer require weew/app-error-handler-black-hole

This error handler suppresses all occurring errors makes use of the weew/app-error-handler.

To enable this provider simply register it on the kernel.

$app->getKernel()->addProviders([
    ErrorHandlingProvider::class,
    BlackHoleErrorHandlerProvider::class,
]);

This is how the config might look like in yaml:

black_hole_error_handler:
  enabled: true
  # or
  disabled: false