Fatal error: Uncaught Error: Class 'SebastianBergmann\Comparator\Comparator' not found in /home/thothstream/public_html/video/composer/vendor/google/gax/src/Testing/ProtobufGPBEmptyComparator.php:28 Stack trace: #0 {main} thrown in /home/thothstream/public_html/video/composer/vendor/google/gax/src/Testing/ProtobufGPBEmptyComparator.php on line 28