PHP Fatal error: Declaration of RedisEventQueue:

[carmedows]

PHP Fatal error: Declaration of RedisEventQueue::onSubscribe(string $subscription_id, Ratchet\WebSocket\WsConnection $client, GraphQL\Language\AST\OperationDefinitionNode $query, ?string $operationName = NULL, ?array $variables = NULL): void must be compatible with GraphQLWs\GraphQLWsSubscriberInterface::onSubscribe(string $subscription_id, Ratchet\WebSocket\WsConnection $client, GraphQL\Language\AST\DocumentNode $document, ?string $operationName = NULL, ?array $variables = NULL): void in /var/www/html/_api/server.php on line 30

I am encountering an error like this