Fatal error: Uncaught Error: Class 'Composer\Installer\LibraryInstaller' not found in /home/xbeta/public_html/wp-rocket/vendor/composer/installers/src/Composer/Installers/Installer.php:13
Stack trace:
#0 {main}
  thrown in /home/xbeta/public_html/wp-rocket/vendor/composer/installers/src/Composer/Installers/Installer.php on line 13