Exception in ModifySiteConfigurationOnWriting

[kitzberger]

We're using SiteWriter in one of our CLI commands and EXT:dynamic_routing_pages' ModifySiteConfigurationOnWriting is throwing an exception on empty site configs.

[ TYPO3\CMS\Core\Configuration\Loader\Exception\YamlParseException ]    
  YAML file "/app/config/sites/xyz/config.yaml" does not contain data.

Additionally when not having any routeEnhancers it's causing this:

 [ERROR] PHP Warning: Undefined array key "routeEnhancers" in /app/vendor/smic/dynamic-routing-pages/Classes/EventListener/ModifySiteConfigurationOnWriting.php line 20

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Versions:

• TYPO3 13.4
• EXT:dynamic_routing_pages 2.0.0