Fatal error: Uncaught Error: Class "Matrix\Operators\Operator" not found in /users/quirl/www/filemanager/spark/protected/runtime/updater/backups/vendor_1725556575/markbaker/matrix/classes/src/Operators/DirectSum.php:8 Stack trace: #0 {main} thrown in /users/quirl/www/filemanager/spark/protected/runtime/updater/backups/vendor_1725556575/markbaker/matrix/classes/src/Operators/DirectSum.php on line 8