Error message
Deprecated function: trim(): Passing null to parameter #1 ($string) of type string is deprecated in Drupal\Component\Utility\UserAgent::getBestMatchingLangcode() (line 50 of core/lib/Drupal/Component/Utility/UserAgent.php).
Drupal\Component\Utility\UserAgent::getBestMatchingLangcode() (Line: 186) Drupal\irving_common\RegionalizationManager->getBrowserLangcode() (Line: 117) Drupal\irving_common\RegionalizationManager->initializeRegion() (Line: 67) Drupal\irving_common\RegionalizationManager->__construct() (Line: 261) Drupal\Component\DependencyInjection\Container->createService() (Line: 179) Drupal\Component\DependencyInjection\Container->get() (Line: 438) Drupal\Component\DependencyInjection\Container->resolveServicesAndParameters() (Line: 239) Drupal\Component\DependencyInjection\Container->createService() (Line: 179) Drupal\Component\DependencyInjection\Container->get() (Line: 105) Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch() (Line: 157) Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76) Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 54) Drupal\simple_oauth\HttpMiddleware\BasicAuthSwap->handle() (Line: 53) Drupal\Core\StackMiddleware\Session->handle() (Line: 48) Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28) Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 32) Drupal\big_pipe\StackMiddleware\ContentLength->handle() (Line: 53) Asm89\Stack\Cors->handle() (Line: 48) Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51) Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36) Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 51) Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 741) Drupal\Core\DrupalKernel->handle() (Line: 19)