Fatal error: Uncaught Error: Class 'Cake\Composer\Installer\PluginInstaller' not found in /home/slsparamedicalco/public_html/vendor/cakephp/plugin-installer/tests/Installer/PluginInstaller.php:10 Stack trace: #0 {main} thrown in /home/slsparamedicalco/public_html/vendor/cakephp/plugin-installer/tests/Installer/PluginInstaller.php on line 10