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)
