Fatal error: Uncaught Error: Interface "Psr\Container\ContainerInterface" not found in /home/matrixweb/public_html/whmcs2022/whmcs/vendor/symfony/service-contracts/ServiceProviderInterface.php:22
Stack trace:
#0 {main}
thrown in /home/matrixweb/public_html/whmcs2022/whmcs/vendor/symfony/service-contracts/ServiceProviderInterface.php on line 22