2018/01/10 11:24:16 [error] 3398#3398: *65 FastCGI sent in stderr: "PHP message: Drupal\Component\Serialization\Exception\InvalidDataTypeException: Unable to parse at line 250 (near "{}                                                                                                                                               "). in /[...]/public/core/lib/Drupal/Component/Serialization/YamlSymfony.php on line 40 #0 /[...]/public/core/lib/Drupal/Component/Serialization/Yaml.php(35): Drupal\Component\Serialization\YamlSymfony::decode('parameters:\n  s...')
#1 /[...]/public/core/lib/Drupal/Core/DependencyInjection/YamlFileLoader.php(332): Drupal\Component\Serialization\Yaml::decode('parameters:\n  s...')
#2 /[...]/public/core/lib/Drupal/Core/DependencyInjection/YamlFileLoader.php(63): Drupal\Core\DependencyInjection\YamlFileLoader->loadFile('/var/www/rachel...')
#3 /[...]/public/core/lib/Drupal/Core/DrupalKernel.php(1286): Drupal\Core\DependencyInjection\YamlFileLoader->l" while reading response header from upstream, client: [ip], server: test.example.com, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/var/run/php/php7.0-fpm.sock:", host: "test.example.com"