Hello! I understand you're experiencing freezing and playback error issues with some channels on your SoPlayer app. I'd be glad to help you get this sorted out. To start, could you tell me a bit more about the problem? For example:
- Does the freezing happen on all channels or only specific ones?
- When you get a playback error, does it say anything specific or just show a generic error?
- Are you connected via Wi-Fi or Ethernet?
- Have you already tried any steps like restarting the app or your device?

This info will help me tailor the guidance for your Windows device running WebKit.

Meanwhile, here’s a general approach we can try step-by-step:

1. Check Internet Connection: Ensure your internet is stable and has enough speed. Streaming apps like SoPlayer need a good connection to avoid buffering and playback errors.

2. Restart SoPlayer: Fully close the app and relaunch it. Sometimes a fresh start clears minor glitches.

3. Clear SoPlayer Cache: Although this is more common on devices like Fire TV, clearing cache or temporary data on your Windows device browser might help. You can try clearing the browsing data relating to SoPlayer or the WebKit browser cache.

4. Update the App/Browser: Make sure SoPlayer and your WebKit browser are up to date. Updates can fix bugs causing freezes or playback errors.

5. Try Lower Streaming Quality: Some playback errors are related to high-quality streams not loading correctly. If SoPlayer lets you adjust stream quality, try lowering it and see if that plays better.

6. Check Channel Availability: Sometimes, specific channels may have temporary issues on the servers or with your subscription/access. If possible, test other channels and see if the issue is isolated.

If you’ve done some of these already, let me know which ones. Otherwise, we can proceed through these steps and escalate if needed. How does that sound?