Fatal error: Uncaught Error: Class "Google\ApiCore\KnownTypes" not found in /home2/celtixg1/public_html/script/vendor/google/gax/src/Serializer.php:542 Stack trace: #0 /home2/celtixg1/public_html/script/vendor/google/gax/src/Serializer.php(552): Google\ApiCore\Serializer::loadKnownMetadataTypes() #1 {main} thrown in /home2/celtixg1/public_html/script/vendor/google/gax/src/Serializer.php on line 542