Fatal error: Uncaught Error: Call to undefined method Symfony\Component\Yaml\Parser::parseFile() in /home/maartyg263/domains/martti.be/public_html/be-flower/vendor/symfony/routing/Loader/YamlFileLoader.php:67 Stack trace: #0 /home/maartyg263/domains/martti.be/public_html/be-flower/vendor/symfony/config/Loader/DelegatingLoader.php(40): Symfony\Component\Routing\Loader\YamlFileLoader->load('config/producti...', 'yaml') #1 /home/maartyg263/domains/martti.be/public_html/be-flower/phpbb/routing/router.php(116): Symfony\Component\Config\Loader\DelegatingLoader->load('config/producti...', 'yaml') #2 /home/maartyg263/domains/martti.be/public_html/be-flower/phpbb/routing/router.php(206): phpbb\routing\router->get_routes() #3 /home/maartyg263/domains/martti.be/public_html/be-flower/phpbb/routing/router.php(191): phpbb\routing\router->create_dumped_url_matcher() #4 /home/maartyg263/domains/martti.be/public_html/be-flower/phpbb/routing/router.php(176): phpbb\routing\router->get_matcher() #5 /home/maartyg263/domains/martti.be/public_h in /home/maartyg263/domains/martti.be/public_html/be-flower/vendor/symfony/routing/Loader/YamlFileLoader.php on line 67