Fatal error: Uncaught Error: Failed opening required '/var/www/test.heyzine/vendor/symfony/polyfill-mbstring/Resources/mb_convert_variables.php8' (include_path='.:/usr/share/php') in /var/www/test.heyzine/vendor/symfony/polyfill-mbstring/bootstrap.php:115 Stack trace: #0 /var/www/test.heyzine/vendor/composer/autoload_real.php(41): require() #1 /var/www/test.heyzine/vendor/composer/autoload_real.php(45): {closure}() #2 /var/www/test.heyzine/vendor/autoload.php(25): ComposerAutoloaderInit067c2445b15b1867d93489c9a900843a::getLoader() #3 /var/www/test.heyzine/web/index.php(26): require('...') #4 {main} thrown in /var/www/test.heyzine/vendor/symfony/polyfill-mbstring/bootstrap.php on line 115