Where is the file after create by "$service->spreadsheets->create($requestBody)" - laravel-5

Question

Thank you very much for reading this, its quite long!
I run my function:
public function createSpreadSheet()
{
$client = $this->getClient();
$service = new \Google_Service_Sheets($client);
// TODO: Assign values to desired properties of `requestBody`:
$requestBody = new \Google_Service_Sheets_Spreadsheet();
$response = $service->spreadsheets->create($requestBody);
echo '<pre>', var_export($response, true), '</pre>', "\n";
}
I got a result:
Google_Service_Sheets_Spreadsheet::__set_state(array(
'collection_key' => 'sheets',
'developerMetadataType' => 'Google_Service_Sheets_DeveloperMetadata',
'developerMetadataDataType' => 'array',
'namedRangesType' => 'Google_Service_Sheets_NamedRange',
'namedRangesDataType' => 'array',
'propertiesType' => 'Google_Service_Sheets_SpreadsheetProperties',
'propertiesDataType' => '',
'sheetsType' => 'Google_Service_Sheets_Sheet',
'sheetsDataType' => 'array',
'spreadsheetId' => '1QlBQo_YHQpiiMBWn6b6wSMVWkiFRx4grJhPParXUUSU',
'spreadsheetUrl' => 'https://docs.google.com/spreadsheets/d/1QlBQo_YHQpiiMBWn6b6wSMVWkiFRx4grJhPParXUUSU/edit',
'internal_gapi_mappings' =>
array (
),
modelData' =>
array (
),
'processed' =>
array (
),
'properties' =>
Google_Service_Sheets_SpreadsheetProperties::__set_state(array(
'autoRecalc' => 'ON_CHANGE',
'defaultFormatType' => 'Google_Service_Sheets_CellFormat',
'defaultFormatDataType' => '',
'iterativeCalculationSettingsType' => 'Google_Service_Sheets_IterativeCalculationSettings',
'iterativeCalculationSettingsDataType' => '',
'locale' => 'en_US',
'timeZone' => 'Etc/GMT',
'title' => 'Untitled spreadsheet',
'internal_gapi_mappings' =>
array (
),
'modelData' =>
array (
),
'processed' =>
array (
),
'defaultFormat' =>
Google_Service_Sheets_CellFormat::__set_state(array(
'backgroundColorType' => 'Google_Service_Sheets_Color',
'backgroundColorDataType' => '',
'bordersType' => 'Google_Service_Sheets_Borders',
'bordersDataType' => '',
'horizontalAlignment' => NULL,
'hyperlinkDisplayType' => NULL,
'numberFormatType' => 'Google_Service_Sheets_NumberFormat',
'numberFormatDataType' => '',
.........
.........
))
I access to the link it returned:
'https://docs.google.com/spreadsheets/d/1QlBQo_YHQpiiMBWn6b6wSMVWkiFRx4grJhPParXUUSU/edit'
it gives me this 'request access' page, then I press the request access
I open my email and get this:
Your message wasn't delivered to xxxxxx#xxxxxxxx.iam.gserviceaccount.com because the domain admanager-1x3x71x4x27x4.iam.gserviceaccount.com couldn't be found. Check for typos or unnecessary spaces and try again.
Is there something wrong and what should I do? I just want to open the file and check where it is.
Thank you very much!