Warning: require(/htdocs/vendor/composer/../symfony/polyfill-mbstring/bootstrap.php): Failed to open stream: No such file or directory in /htdocs/vendor/composer/autoload_real.php on line 42

Warning: require(/htdocs/vendor/composer/../symfony/polyfill-mbstring/bootstrap.php): Failed to open stream: No such file or directory in /htdocs/vendor/composer/autoload_real.php on line 42

Fatal error: Uncaught Error: Failed opening required '/htdocs/vendor/composer/../symfony/polyfill-mbstring/bootstrap.php' (include_path='.:/usr/share/php') in /htdocs/vendor/composer/autoload_real.php:42 Stack trace: #0 /htdocs/vendor/composer/autoload_real.php(46): {closure:ComposerAutoloaderInit3bbf0a08cfe1e7257f8ed0ad2800f1f3::getLoader():38}('0e6d7bf4a5811bf...', '/htdocs/vendor/...') #1 /htdocs/vendor/autoload.php(22): ComposerAutoloaderInit3bbf0a08cfe1e7257f8ed0ad2800f1f3::getLoader() #2 /htdocs/vendor/autoload_runtime.php(5): require_once('/htdocs/vendor/...') #3 /htdocs/index.php(36): require_once('/htdocs/vendor/...') #4 {main} thrown in /htdocs/vendor/composer/autoload_real.php on line 42