Fatal error: Uncaught Error: Class "Google\Cloud\Core\Upload\AbstractUploader" not found in /home/digitalproduct/public_html/projectmanagementsoftware/vendor/google/cloud-core/src/Upload/ResumableUploader.php:35 Stack trace: #0 {main} thrown in /home/digitalproduct/public_html/projectmanagementsoftware/vendor/google/cloud-core/src/Upload/ResumableUploader.php on line 35