ok figured it out; why couldn't you tell me to download the Airgap wallet and "Sync accounts" from Airgap vault to Airgap Wallet? How did you not know this? Something is very fishy here with your explanation and trying to help me out; you should find someone else to answer and help people out here cause you did not.
That's your fault how did you know that you can use airgrap vault to store aeternity?
If you didn't research first about this wallet you will never know how to get the balance of your aeternity wallet.
You need both Airgap vault and wallet where the airgap vault is running as offline and sign a transaction and the airgap wallet is where you can see all of your coins balances where you can make a transaction.
Airgap vault and wallet is developed by other teams if you want to get more information about this wallet better go directly from their website here
https://airgap.it/