Hi there! I understand that the Yono Business SBI app portal is not working for you. To help you better, could you please let me know if you're facing problems with logging in, app not opening, loading issues, or something else? Also, are you using the web portal on your Windows device or the mobile app? Knowing this will help me guide you through the right steps.

Meanwhile, here are some common fixes that usually help resolve Yono Business SBI app or portal issues on Windows:

1. Check Your Internet Connection
Ensure your Windows machine has a stable and strong internet connection. Try opening other websites to verify connectivity.

2. Clear Browser Cache and Cookies
Since your device uses the WebKit browser, clearing cached data often solves loading problems. You can do this from the browser’s settings under privacy or history options.

3. Update Your Browser
Make sure your WebKit-based browser is updated to the latest version, as older versions might cause compatibility issues.

4. Try Incognito/Private Mode
Open the Yono Business SBI portal in a private browsing window to rule out extensions or cookies interfering with the site.

5. Disable VPN or Proxy
If you are using any VPN or proxy settings, temporarily disable them and see if the portal loads.

6. Check for App Updates (If Using App)
If you are using the Yono Business SBI app rather than the browser portal, make sure it’s updated to the latest version from the official source.

7. Restart Your Device
Sometimes simply restarting your Windows device can clear temporary issues.

If you’ve tried all these and the portal still doesn’t work, there might be temporary issues on SBI’s side or your account may need verification.

You can also file a complaint or service request here: https://crh.sbi.bank.in/ using your registered mobile number for more direct support.

Please try these and let me know the result or if you need help with any step! Are you satisfied with this initial guidance?