Deprecated: Symfony\Component\DependencyInjection\Exception\EnvParameterException::__construct(): Implicitly marking parameter $previous as nullable is deprecated, the explicit nullable type must be used instead in /home/matrixweb/public_html/whmcs2022/whmcs/vendor/symfony/dependency-injection/Exception/EnvParameterException.php on line 21

Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Exception\InvalidArgumentException" not found in /home/matrixweb/public_html/whmcs2022/whmcs/vendor/symfony/dependency-injection/Exception/EnvParameterException.php:19 Stack trace: #0 {main} thrown in /home/matrixweb/public_html/whmcs2022/whmcs/vendor/symfony/dependency-injection/Exception/EnvParameterException.php on line 19