Fatal error: Could not check compatibility between PharIo\Manifest\AuthorCollection::getIterator(): PharIo\Manifest\AuthorCollectionIterator and IteratorAggregate::getIterator(): Traversable, because class PharIo\Manifest\AuthorCollectionIterator is not available in /home/bimmertest/BookStack/vendor/phar-io/manifest/src/values/AuthorCollection.php on line 31