Hi! I understand you're having trouble accessing the Odnoklassniki app or site because Google (or Chrome) keeps marking it as "not secure," which blocks the page from opening sometimes. Let's work through this together to get you back on track.

A common reason for this "not secure" warning is related to the website's security certificate or your browser's settings causing it to distrust the site. Here’s what we can do step-by-step on your Windows 10 device with WebKit browsing:

1. Check Date and Time on Your PC
Incorrect system date/time can cause certificate errors. Please ensure your Windows clock is accurate:
- Right-click the date on the taskbar > Adjust date/time
- Toggle on "Set time automatically" if it's off
- Restart the browser and try opening the site again

2. Clear Browser Cache & Cookies
Sometimes stored data can create issues:
- Go to your browser settings
- Clear browsing data: select cache and cookies
- Restart the browser, then test accessing Odnoklassniki again

3. Bypass the Warning (If You Trust The Site)
When the warning appears, look for an "Advanced" link or option at the bottom of the warning page. Click it, then choose "Proceed to [site]" if available. This bypasses the warning but be cautious only if you trust the site1.

4. Disable Browser Extensions Temporarily
Some extensions can interfere with security checks. Try disabling them one by one to see if that resolves the problem.

5. Check Your Internet Security Software
Sometimes, antivirus or firewall settings block sites or interfere with SSL certificates. Temporarily disable them and check if the site loads.

6. Update Your Browser
Make sure you’re using the latest version of your browser to avoid compatibility or security issues.

7. Use an Alternative Browser
Since your device is using WebKit, if possible, try opening Odnoklassniki on a different browser like Microsoft Edge or Firefox to see if the problem persists.

If the above steps do not clear the warning, it might be an issue on the server side with Odnoklassniki's certificate or settings. In that case, reporting the issue via Odnoklassniki’s official support could help them resolve it.

Could you please tell me what specific browser you are using (since your device uses WebKit, possibly Safari or a similar engine), and if you see any specific error messages or codes in the warning? That way, I can assist more precisely.

Are you comfortable trying these steps? Let me know how it goes!