The garbled text is caused by a character encoding error, with the Bulgarian phrase translating to "Download files" followed by a specific file identifier. It usually stems from misinterpreting UTF-8 as another encoding, which can be fixed by ensuring UTF-8 is used in your applications, and is often found in automated email notifications.
Repair utf-8 strings that contain iso-8599 encoded utf-8 characters The garbled text is caused by a character