If the correct Empire & Puzzles game is not on your device with the email address you’re using now, that means it's not the right one.
It’s extremely important to use the correct email and password when logging in, so please make sure you’re connecting to the right Google Play account. 
To properly access your account, please:
1) Make sure you have added the correct Google Play account to your Android device
2) In the in-game settings, tap on ‘Google Play Sign-in’ and connect with the e-mail address originally used to sync your account (the one you have lost)
3) If your account was linked to an old email that you no longer have access to, contact Google Support (https://accounts.google.com/signin/recovery) to recover your account’s information
Small Giant Games cannot access your Google Play account information. If you need help recovering your Google Play account or login, you would need to contact Google directly.