Fatal error: Uncaught Error: Class "Symfony\Polyfill\Util\BinaryOnFuncOverload" not found in /home/rswsandb/gradian.rswsandbox.net/Gradian/vendor/symfony/polyfill-util/Binary.php:15 Stack trace: #0 {main} thrown in /home/rswsandb/gradian.rswsandbox.net/Gradian/vendor/symfony/polyfill-util/Binary.php on line 15