Warning: Class "Drupal\Core\Http\KernelEvent" not found in /home/alekseiv/public_html/core/includes/bootstrap.inc on line 135

Warning: include(/home/alekseiv/public_html/vendor/composer/../../core/lib/Drupal/Core/Installer/InstallerRedirectTrait.php): Failed to open stream: No such file or directory in /home/alekseiv/public_html/vendor/composer/ClassLoader.php on line 571

Warning: include(): Failed opening '/home/alekseiv/public_html/vendor/composer/../../core/lib/Drupal/Core/Installer/InstallerRedirectTrait.php' for inclusion (include_path='/home/alekseiv/public_html/vendor/pear/pear_exception:/home/alekseiv/public_html/vendor/pear/console_getopt:/home/alekseiv/public_html/vendor/pear/pear-core-minimal/src:/home/alekseiv/public_html/vendor/pear/archive_tar:.:/opt/alt/php81/usr/share/pear:/opt/alt/php81/usr/share/php:/usr/share/pear:/usr/share/php') in /home/alekseiv/public_html/vendor/composer/ClassLoader.php on line 571

Fatal error: Trait "Drupal\Core\Installer\InstallerRedirectTrait" not found in /home/alekseiv/public_html/core/lib/Drupal/Core/DrupalKernel.php on line 54