Fatal error: Uncaught Error: Class 'Google\Rpc\RetryInfo' not found in C:\wamp64\www\wordpress\wp-content\plugins\google-listings-and-ads\vendor\google\gax\src\Serializer.php:486 Stack trace: #0 C:\wamp64\www\wordpress\wp-content\plugins\google-listings-and-ads\vendor\google\gax\src\Serializer.php(495): Google\ApiCore\Serializer::loadKnownMetadataTypes() #1 {main} thrown in C:\wamp64\www\wordpress\wp-content\plugins\google-listings-and-ads\vendor\google\gax\src\Serializer.php on line 486