ClientRepository is not implementing the interface properly

[ammardev]

Hello, When I make a request to /oauth/token I get this error:

The error as a text:

PHP Fatal error:  Declaration of Luqta\LaravelPassportMongoDB\Bridge\ClientRepository::getClientEntity($clientIdentifier, $grantType, $clientSecret = NULL, $mustValidateSecret = true) must be compatible with League\OAuth2\Server\Repositories\ClientRepositoryInterface::getClientEntity($clientIdentifier) in /var/www/ApiGateway/vendor/luqta/laravel-passport-mongodb/src/Bridge/ClientRepository.php on line 8

In ClientRepository.php line 8:
                                                                                                                                                                                      
  Declaration of Luqta\LaravelPassportMongoDB\Bridge\ClientRepository::getClientEntity($clientIdentifier, $grantType, $clientSecret = NULL, $mustValidateSecret = true) must be comp  
  atible with League\OAuth2\Server\Repositories\ClientRepositoryInterface::getClientEntity($clientIdentifier)                                                                         
                                                                                                                                                                                      


In ClientRepository.php line 8:
                                                                                                                                                                                      
  Declaration of Luqta\LaravelPassportMongoDB\Bridge\ClientRepository::getClientEntity($clientIdentifier, $grantType, $clientSecret = NULL, $mustValidateSecret = true) must be comp  
  atible with League\OAuth2\Server\Repositories\ClientRepositoryInterface::getClientEntity($clientIdentifier)