Hi rehrar
I can confirm having the same issue in Qubes 4.0-rc4 for the past 2 days. As the error message states the likely reasons are:
- The download server is down.
- File size exceeded (endless data attack triggered).
- Tor Browser Downloader (by Whonix developers) has been broken due to upstream changes.
Recommendations: (as per error message)
- Try again later. If the error persists it probably won’t solve itself before the next update.
- Check News: Follow Whonix Developments
- Manually update: Tor Browser: Manual Download
This happens sometimes. You reported the issue so I don’t think this will be a problem for long and it may even resolve itself. It may be something simple but I don’t know.
This may be because not able to reach Tor Project.