Deprecated: Dhii\Container\Exception\ContainerException::__construct(): Implicitly marking parameter $previous as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html1/wp-content/plugins/zettle-pos-integration/vendor/dhii/containers/src/Exception/ContainerException.php on line 29

Fatal error: Uncaught Error: Interface "Psr\Container\ContainerExceptionInterface" not found in /var/www/html1/wp-content/plugins/zettle-pos-integration/vendor/dhii/containers/src/Exception/ContainerException.php:17 Stack trace: #0 {main} thrown in /var/www/html1/wp-content/plugins/zettle-pos-integration/vendor/dhii/containers/src/Exception/ContainerException.php on line 17