Fatal error: Uncaught Error: Class "Google\ApiCore\KnownTypes" not found in /var/www/html/thepresence360/vendor/google/gax/src/Serializer.php:544 Stack trace: #0 /var/www/html/thepresence360/vendor/google/gax/src/Serializer.php(554): Google\ApiCore\Serializer::loadKnownMetadataTypes() #1 {main} thrown in /var/www/html/thepresence360/vendor/google/gax/src/Serializer.php on line 544