If your account appears empty when you log in, here are the most common reasons:
Double-check your login method:
Make sure you're signed in with the same email or method you originally used.If you used “Continue with Google” before, logging in with an email and password creates a separate (empty) account.
Try logging out and signing back in using the correct method.
Double check the email address you are signed in with
Check your calendar filters:
On the Calendar page, look at the filters on the right-hand side. If everything is unchecked, nothing will show. Make sure the relevant people or event types are selected.