Hi! I understand your KaraFun app is telling you that you're not connected to the internet, but you actually are. Let's get this sorted out together.

First, a couple of quick checks for me:
- Are you using KaraFun on a PC or some other device?
- Have you recently changed or reset any network settings or your firewall?

Meanwhile, let's start with the basics:

1. Restart your device and router: Sometimes the connection that apps rely on can get a little lost. Turning your computer and the Wi-Fi router off and back on is a great first step.

2. Check firewall settings: On Windows 10, the firewall may block KaraFun from accessing the internet. You can check this by:
- Going to the Control Panel > System and Security > Windows Defender Firewall.
- Click "Allow an app or feature through Windows Defender Firewall."
- Make sure KaraFun is allowed on both private and public networks.

3. Run KaraFun as Administrator: Right-click the KaraFun app icon and select "Run as administrator" to ensure it has all the permissions it needs.

4. Check Internet connection inside KaraFun settings: If you have access to any network or app settings inside KaraFun, try switching Wi-Fi networks or reconnecting there.

5. Close background apps: Sometimes other apps or security software may interfere. Try temporarily disabling VPNs or antivirus software and see if that helps.

6. Software updates: Ensure KaraFun and your Windows 10 system are both updated to their latest versions.

If none of those work, it may be worth doing a 'factory reset' of your network settings or the KaraFun app itself, but let's try the above first.

Could you please tell me if you have tried any of these steps already? That way I can guide you toward the next best solution.