Warning: Class 'Drupal\Core\StringTranslation\TranslatableMarkup' not found in /www/wwwroot/blomreks.info/core/includes/bootstrap.inc on line 50

Fatal error: Uncaught Error: Interface 'Stringable' not found in /www/wwwroot/blomreks.info/core/lib/Drupal/Component/Render/MarkupInterface.php:32 Stack trace: #0 /www/wwwroot/blomreks.info/vendor/composer/ClassLoader.php(576): include() #1 /www/wwwroot/blomreks.info/vendor/composer/ClassLoader.php(427): Composer\Autoload\{closure}() #2 [internal function]: Composer\Autoload\ClassLoader->loadClass() #3 /www/wwwroot/blomreks.info/core/lib/Drupal/Component/Render/FormattableMarkup.php(61): spl_autoload_call() #4 /www/wwwroot/blomreks.info/vendor/composer/ClassLoader.php(576): include('/www/wwwroot/bl...') #5 /www/wwwroot/blomreks.info/vendor/composer/ClassLoader.php(427): Composer\Autoload\{closure}() #6 [internal function]: Composer\Autoload\ClassLoader->loadClass() #7 /www/wwwroot/blomreks.info/core/lib/Drupal/Core/StringTranslation/TranslatableMarkup.php(21): spl_autoload_call() #8 /www/wwwroot/blomreks.info/vendor/composer/ClassLoader.php(576): include('/www/wwwroot/bl...') #9 /www/wwwroot/blomreks.info/vendor/composer in /www/wwwroot/blomreks.info/core/lib/Drupal/Component/Render/MarkupInterface.php on line 32