Fatal error: Uncaught Error: Class 'Composer\Installers\BaseInstaller' not found in /home/user2040093/www/belaquilon.by/wp-content/plugins/woocommerce-admin/vendor/composer/installers/src/Composer/Installers/RoundcubeInstaller.php:4 Stack trace: #0 {main} thrown in /home/user2040093/www/belaquilon.by/wp-content/plugins/woocommerce-admin/vendor/composer/installers/src/Composer/Installers/RoundcubeInstaller.php on line 4