Warning: require(C:\xampp\htdocs\join-backend\vendor\composer/../symfony/polyfill-mbstring/bootstrap.php): Failed to open stream: No such file or directory in C:\xampp\htdocs\join-backend\vendor\composer\autoload_real.php on line 41

Fatal error: Uncaught Error: Failed opening required 'C:\xampp\htdocs\join-backend\vendor\composer/../symfony/polyfill-mbstring/bootstrap.php' (include_path='C:\xampp\php\PEAR') in C:\xampp\htdocs\join-backend\vendor\composer\autoload_real.php:41 Stack trace: #0 C:\xampp\htdocs\join-backend\vendor\composer\autoload_real.php(45): {closure}('0e6d7bf4a5811bf...', 'C:\\xampp\\htdocs...') #1 C:\xampp\htdocs\join-backend\vendor\autoload.php(25): ComposerAutoloaderInit7276002d615344e545214e14404b2a5b::getLoader() #2 C:\xampp\htdocs\join-backend\public\index.php(13): require('C:\\xampp\\htdocs...') #3 {main} thrown in C:\xampp\htdocs\join-backend\vendor\composer\autoload_real.php on line 41