Description: The issue does not occur when uploading files with other special characters in the filename. The application's error logs show a "NullPointerException" error when attempting to upload the file. Reproducibility: This issue is consistently reproducible on Chrome and Firefox browsers, but not on Safari. Steps to Reproduce: 1. Log in to the application with a valid username and password. 2. Click on the "Upload File" button on the dashboard. 3. Select a file from your local machine that has the character "ß" (Latin small letter sharp S) in its filename (e.g., "exampleßfile.txt"). 4. Click the "Upload" button to initiate the file upload process. 5. Observe the application's behavior. Actual Results: The application crashes, and an error message "Unexpected Error: File Upload Failed" is displayed. The file is not uploaded, and the application becomes unresponsive. Expected Results: The file should be uploaded successfully, and a success message should be displayed. Reproducible: Didn't try User Profile Reset: No Additional Info: The issue does not occur when uploading files with other special characters in the filename. The application's error logs show a "NullPointerException" error when attempting to upload the file.