Hi there! I see you're having trouble signing up for the Dr. Berg Junk Food Meter app on your Mac running OS X 10.15.7. I'd be happy to help you get this sorted out.

To start, could you tell me a bit more about what exactly happens when you try to sign up? For example:
- Are you able to open the sign-up page or form?
- Do you get any error messages? If so, what do they say?
- Is the app downloaded as a native app on your Mac or are you trying to use a web version through your browser?
- Have you tried any steps so far, like restarting the app, reinstalling it, or checking your internet connection?

Once I have a bit more detail, I can guide you through some steps to fix it. Meanwhile, here are some initial things to try:

1. Check your internet connection: Make sure your Mac is connected to the internet and can access other websites or online services.

2. Restart the app: Close the app completely and open it again to see if the sign-up works.

3. Update the app: If you installed it from the App Store, check if there’s an update available and install it.

4. Try signing up through a browser: If the app lets you sign up via a web link, try that on Safari to see if it works better.

5. Clear browser cache (if using browser): Sometimes leftover data interferes with logins; clearing cache in Safari might help.

If these don’t help, let me know what you observed on your end, and we can go deeper with troubleshooting from there.

Also, if the issue persists, contacting Dr. Berg’s customer service might be necessary since they handle account creation and login problems directly 1.

Looking forward to your details! Are you able to share more about the behavior when signing up?

I get an error message that says bad request

Thanks for letting me know about the "bad request" error message. That typically means the app is sending some kind of incorrect or malformed information to the server during the sign-up process.

Let’s try a few targeted steps to troubleshoot this:

1. Check your input data: Make sure your sign-up details (email, password, etc.) don’t have any special characters or spaces that might be causing the app to send invalid data. Sometimes, extra spaces at the start or end of a field can trigger this error.

2. Clear app cache or reinstall: Since you’re on a Mac, if the app stores temporary data, it might be corrupted. Try uninstalling the app completely, then reinstall it fresh from the source to clear out any bad cached data.

3. Try signing up via browser: If the app offers a web version for sign-up, try creating your account there instead of within the app. Sometimes the app’s internal submission method has issues that don’t occur on the web interface.

4. Check date and time settings: Incorrect system date/time on your Mac might cause requests to server to fail authentication or validation. Go to System Preferences > Date & Time and ensure it’s set correctly or set to update automatically.

5. Network issues: Some network configurations or firewalls may block or alter the app’s request leading to a Bad Request error. Try switching to a different network or disabling VPN/proxy if you’re using one.

6. Update macOS and the app: Make sure you have the latest updates for your OS version (10.15.7) and the app, as developers often release fixes for known bugs.

If after these steps the problem remains, it might be a bug on their servers or app backend, and reporting this with details (including screenshots) to Dr. Berg’s support would be a good next step.

Would you be able to try these out and let me know if any of them resolve the error? I’m here to assist through the process!