Warning: Class 'Drupal\Core\Http\KernelEvent' not found in /app/docroot/core/includes/bootstrap.inc on line 134
Warning: ini_set(): Headers already sent. You cannot change the session module's ini settings at this time in /app/docroot/core/lib/Drupal/Core/DrupalKernel.php on line 999
Warning: ini_set(): Headers already sent. You cannot change the session module's ini settings at this time in /app/docroot/core/lib/Drupal/Core/DrupalKernel.php on line 1000
Warning: ini_set(): Headers already sent. You cannot change the session module's ini settings at this time in /app/docroot/core/lib/Drupal/Core/DrupalKernel.php on line 1001
Warning: ini_set(): Headers already sent. You cannot change the session module's ini settings at this time in /app/docroot/core/lib/Drupal/Core/DrupalKernel.php on line 1004
Warning: ini_set(): Headers already sent. You cannot change the session module's ini settings at this time in /app/docroot/core/lib/Drupal/Core/DrupalKernel.php on line 1006
Fatal error: Uncaught Error: Class 'Drupal\Core\Installer\InstallerKernel' not found in /app/docroot/core/includes/errors.inc:315
Stack trace:
#0 /app/docroot/core/includes/errors.inc(123): _drupal_get_error_level()
#1 /app/docroot/core/includes/bootstrap.inc(384): error_displayable()
#2 /app/docroot/core/includes/bootstrap.inc(368): _drupal_exception_handler_additional(Object(Error), Object(Error))
#3 [internal function]: _drupal_exception_handler(Object(Error))
#4 {main}
thrown in /app/docroot/core/includes/errors.inc on line 315