Fatal error: Uncaught Error: Class 'Composer\Installer\LibraryInstaller' not found in /var/www/html/cyber-relais/gica/src/Composer/Installer/PluginInstaller.php:26 Stack trace: #0 {main} thrown in /var/www/html/cyber-relais/gica/src/Composer/Installer/PluginInstaller.php on line 26