Fatal error: Uncaught Error: Class "Composer\Installer\LibraryInstaller" not found in C:\xampp\htdocs\wp-content\plugins\code-snippets\vendor\composer\installers\src\Composer\Installers\Installer.php:15 Stack trace: #0 {main} thrown in C:\xampp\htdocs\wp-content\plugins\code-snippets\vendor\composer\installers\src\Composer\Installers\Installer.php on line 15