Warning: array_key_exists(): The first argument should be either a string or an integer in /var/www/vhosts/dutchcowboys.nl/prod/cowboys_2019-11-17_110325/vendor/symfony/symfony/src/Symfony/Component/Yaml/Parser.php on line 451

Fatal error: Uncaught exception 'Symfony\Component\Yaml\Exception\ParseException' with message 'Reference "" does not exist at line 1 (near "- *").' in /var/www/vhosts/dutchcowboys.nl/prod/cowboys_2019-11-17_110325/vendor/symfony/symfony/src/Symfony/Component/Yaml/Parser.php:452 Stack trace: #0 /var/www/vhosts/dutchcowboys.nl/prod/cowboys_2019-11-17_110325/vendor/symfony/symfony/src/Symfony/Component/Yaml/Parser.php(122): Symfony\Component\Yaml\Parser->parseValue('*', false, false) #1 /var/www/vhosts/dutchcowboys.nl/prod/cowboys_2019-11-17_110325/vendor/symfony/symfony/src/Symfony/Component/Yaml/Parser.php(202): Symfony\Component\Yaml\Parser->parse('- *', false, false) #2 /var/www/vhosts/dutchcowboys.nl/prod/cowboys_2019-11-17_110325/vendor/symfony/symfony/src/Symfony/Component/Yaml/Parser.php(202): Symfony\Component\Yaml\Parser->parse('type: f...', false, false) #3 /var/www/vhosts/dutchcowboys.nl/prod/cowboys_2019-11-17_110325/vendor/symfony/symfony/src/Symfony/Component/Yaml/Parser.php(202): Symfony\Component\Ya in /var/www/vhosts/dutchcowboys.nl/prod/cowboys_2019-11-17_110325/vendor/symfony/symfony/src/Symfony/Component/Config/Loader/FileLoader.php on line 128