Fatal error: Uncaught Error: Interface 'Composer\Installer\InstallerInterface' not found in /var/www/html/cyber-relais/gica/src/Composer/Installer/LibraryInstaller.php:28 Stack trace: #0 {main} thrown in /var/www/html/cyber-relais/gica/src/Composer/Installer/LibraryInstaller.php on line 28