Fatal error: Uncaught Error: Class "Composer\Installer\LibraryInstaller" not found in /home/zimmerma/public_html/wp-content/plugins/favorites/vendor/composer/installers/src/Composer/Installers/Installer.php:8 Stack trace: #0 {main} thrown in /home/zimmerma/public_html/wp-content/plugins/favorites/vendor/composer/installers/src/Composer/Installers/Installer.php on line 8