Hi! I see you’re getting an Error 15 when trying to log in to the STN Sports and Race app on your Mac with OS X 10.15.7. To help you best, could you tell me a bit more? For example:

- Is this happening right after you enter your login details?
- Have you recently changed your password or account info?
- Are you using the app or logging in via a web browser?
- Did this error start after any app update or system change?

Meanwhile, I can guide you through some initial steps to fix this login issue:

1. Verify Your Credentials: Make sure your username and password are correct. If you’re unsure, try resetting your password through the “Forgot Password” link on the login page.

2. Check Your Internet Connection: Confirm you have a stable internet connection as login errors can sometimes occur if your connection drops.

3. Clear Browser Cache or App Data:
- If using a browser, clear cached data and cookies, then restart the browser.
- If using the app, try quitting it completely and reopening.

4. Wait and Retry: Sometimes this error relates to temporary security verifications or server checks. Waiting 5-10 minutes before trying again can help.

5. Update the App / Browser: Although you’re on a Mac, if you’re using the STN Sports app, make sure it’s updated to the latest version compatible with your Mac OS.

If none of that works, it may be helpful to contact STN Sports support directly at [email protected] or call their 24/7 support number (888) 568-2712, as the Error 15 can be linked to security-related account blocks or verifications that only they can clear2 4.

Let me know what you’ve already tried or if you want me to walk you through any of these steps! Are you satisfied with this initial solution?