Cannot import wallet


I had exported my wallet some time ago, and I’ve been using my address for mining. I have 1 ZCASH now, and wanted to transfer it, however I am unable to import the wallet via zcash-cli. I run the following command:

zcash-cli z_importwallet WALLETFILE

However it does not give any output. The wallet is encrypted and I think I remember the password, however I don’t think I saved any private/public keys. Is there any way to recover this?