Fatal error: Uncaught Error: Class "Google\ApiCore\KnownTypes" not found in /home/arabianusa/public_html/vendor/google/gax/src/Serializer.php:550 Stack trace: #0 /home/arabianusa/public_html/vendor/google/gax/src/Serializer.php(560): Google\ApiCore\Serializer::loadKnownMetadataTypes() #1 {main} thrown in /home/arabianusa/public_html/vendor/google/gax/src/Serializer.php on line 550