Hi there! I understand you're having trouble with the sign-up process on the Fitdrop app where, after entering your age as over 13, the "OK" button glitches and doesn't let you proceed. Let’s see if we can get this fixed for you.

To help me guide you better, could you tell me:
- Are you using the Fitdrop web app through your browser on Windows 10?
- Which browser are you using exactly? (You mentioned WebKit; is that Safari or a different browser?)
- Have you tried refreshing the page or restarting the browser?

Meanwhile, here’s a straightforward approach we can try:

1. Clear browser cache and cookies: Sometimes stored data can cause unresponsive buttons. You can clear them from your browser settings.

2. Try a different browser: If WebKit is giving trouble, try using Chrome, Firefox, or Edge on your Windows 10 machine. This often resolves UI glitches.

3. Check for updates: Ensure your browser is up to date; outdated browsers could cause compatibility issues.

4. Disable browser extensions: Sometimes extensions can interfere with site functions. Try disabling them temporarily.

If the issue persists after these steps, there might be a problem with the app itself related to age input validation. In that case, contacting Fitdrop support email at [email protected] could be useful since they respond within 24-48 hours4.

Let me know how these go or if you’ve tried any of these already! I’m here to help you get through this.