Fatal error: Uncaught Error: Class "Composer\Installer\LibraryInstaller" not found in /home/jgmatthews/public_html/vendor/composer/installers/src/Composer/Installers/Installer.php:9 Stack trace: #0 {main} thrown in /home/jgmatthews/public_html/vendor/composer/installers/src/Composer/Installers/Installer.php on line 9