@poison001 - This is showing a 500 Internal Server Error. Per our relevant File Upload Utility Troubleshooting section:
If you see a 500 Internal Server Error, this means there is a problem with the SailPoint Cloud processing itself. If you see this, it is best to reproduce the issue using the REST APIs and alert SailPoint Support.
Keep in mind that File Upload Utility doesn’t do any file processing itself. It merely looks for files and sends them to the cloud via APIs.
Hope this helps!