Fatal error: Uncaught Error: Interface "League\Config\ConfigurationInterface" not found in /home/v2appclykk/public_html/mail_manager/vendor/league/config/src/ReadOnlyConfiguration.php:19 Stack trace: #0 {main} thrown in /home/v2appclykk/public_html/mail_manager/vendor/league/config/src/ReadOnlyConfiguration.php on line 19