Fehlermeldung im Contao Manager: $statement must be a Statement object or an array

Fehlermeldung

// Warming up the cache for the prod environment with debug                    
 // false                                                                       
 CRITICAL  [console] Error thrown while running command "cache:warmup --env=prod". Message: "$statement must be a Statement object or an array" ["exception" => InvalidArgumentException { …},"command" => "cache:warmup --env=prod","message" => "$statement must be a Statement object or an array"]
In Result.php line 93:
                                                     
  $statement must be a Statement object or an array