Fatal error: Uncaught Error: Class 'Composer\Installers\Installer' not found in /var/www/drupal/sites/energiatalgud/vendor/oomphinc/composer-installers-extender/src/Installers/Installer.php:11 Stack trace: #0 {main} thrown in /var/www/drupal/sites/energiatalgud/vendor/oomphinc/composer-installers-extender/src/Installers/Installer.php on line 11