Fatal error: Uncaught Error: Class "Composer\Installers\BaseInstaller" not found in /home/bouesti1/public_html/books.bouesti.edu.ng/wp-content/themes/vendor/composer/installers/src/Composer/Installers/OxidInstaller.php:7 Stack trace: #0 {main} thrown in /home/bouesti1/public_html/books.bouesti.edu.ng/wp-content/themes/vendor/composer/installers/src/Composer/Installers/OxidInstaller.php on line 7