I received an email from Google:
It looks like you haven’t used your Google Apps account for the domain windyspot.com in the past 365 days. Google will suspend your account on or after Dec 2, 2017, and will close your account and delete your account data on or after Jan 1, 2018, unless you take action as described below.
Want to keep your account? If you want to keep this Google Apps account, please sign in to admin.google.com before Jan 1, 2018, and we’ll know that you’re still using the account. If you’ve forgotten your username or password, we can help you recover your account. Once you log in, you should receive an email within the next 48 hours letting you know that your account is no longer targeted for deletion.
I went to admin.google.com and tried to sign in with my regular Gmail account, but then it says:
admin.google.com is for G Suite accounts only. Regular Gmail accounts cannot be used to sign in to admin.google.com.
I don't have any @windyspot.com
email address. windyspot.com is only a website, hosted on Google App Engine. I don't remember signing up for a Google Apps / G Suite account.
Will the domain or App Engine hosting stop working if I don't manage to sign in?
Or can I ignore this?