Deprecated: Return type of RequirementCollection::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/rankting/public_html/ALT/ranketing.de (contao)/vendor/sensio/distribution-bundle/Resources/skeleton/app/SymfonyRequirements.php on line 181