Hi! I understand you're having trouble downloading music using the Anymusic app even though it was working fine before. Let me help you get this sorted out.

To start, can you tell me if you’re getting any specific error messages when you try to download? Also, have you made any recent changes to your device, network, or app settings right before this problem started?

Meanwhile, here’s a step-by-step guide to troubleshoot this issue on your Windows device with WebKit browser:

1. Check Your Internet Connection
Ensure you have a stable internet connection since downloads need it. Try browsing any website to confirm.

2. Restart Your Device
Sometimes, a simple restart clears temporary glitches affecting apps or network access.

3. Verify App Permissions and Internet Access
Make sure Anymusic has the permission to access the internet. On Windows 10:
- Go to Settings > Privacy > App permissions > Internet and check if Anymusic is allowed.
Also, check your firewall or antivirus to ensure they are not blocking the app.

4. Update Anymusic
Confirm you’re running the latest version of Anymusic, as older versions might have bugs or compatibility problems. You can check the official site or app store for updates.

5. Validate the Music Link
If you’re using links to download, ensure the link is valid, accessible, and the song or video still playable on the source platform.

6. Clear App Cache or Data
If the app keeps failing, clearing cache or reinstalling it might help. On Windows:
- Open Settings > Apps > find Anymusic > select Uninstall.
- Then reinstall the latest version from the official source.

7. Try Signing Out and Back In
If Anymusic uses a login account, sign out and then sign back in to refresh your session.

If after trying these you still face the problem, let me know what step you got to and any messages you see. We can then dig deeper or look for any server-side issues.

Are you able to try these steps? Let me know how it goes!