Warning: require(/var/www/placeset/vendor/composer/../symfony/polyfill-mbstring/bootstrap.php): Failed to open stream: No such file or directory in /var/www/placeset/vendor/composer/autoload_real.php on line 41

Fatal error: Uncaught Error: Failed opening required '/var/www/placeset/vendor/composer/../symfony/polyfill-mbstring/bootstrap.php' (include_path='.:/usr/share/php') in /var/www/placeset/vendor/composer/autoload_real.php:41 Stack trace: #0 /var/www/placeset/vendor/composer/autoload_real.php(45): {closure}() #1 /var/www/placeset/vendor/autoload.php(25): ComposerAutoloaderInitf3094d4c852236fe3c4ff06d6f76768c::getLoader() #2 /var/www/placeset/public/index.php(13): require('...') #3 {main} thrown in /var/www/placeset/vendor/composer/autoload_real.php on line 41