Fatal error: Uncaught Error: Class 'Composer\Autoload\ClassLoader' not found in C:\wwwroot\wx.888chem.com\vendor\composer\autoload_real.php:28 Stack trace: #0 C:\wwwroot\wx.888chem.com\vendor\autoload.php(7): ComposerAutoloaderInit9d6458dc5ee7e70261914ef45240a1f2::getLoader() #1 C:\wwwroot\wx.888chem.com\frontend\web\index.php(12): require('C:\\wwwroot\\wx.8...') #2 {main} thrown in C:\wwwroot\wx.888chem.com\vendor\composer\autoload_real.php on line 28