Fatal error: Uncaught Error: Class 'Composer\Installers\BaseInstaller' not found in /var/www/drupal/sites/energiatalgud/vendor/oomphinc/composer-installers-extender/src/Installers/CustomInstaller.php:16 Stack trace: #0 {main} thrown in /var/www/drupal/sites/energiatalgud/vendor/oomphinc/composer-installers-extender/src/Installers/CustomInstaller.php on line 16