I bought a single CryptoKitty using MetaMask. After importing from MetaMask, I get the following balance error for my holdings.

ERROR:

Some of your calculated balances do not match the balances reported by the API. The differences are listed below.

[...]

Asset Difference

CK (Unknown) -1.0

QUESTION: How can I manage this? Since Koinly doesn't recognize the "CK (Unknown)" crypto (which I am assuming represents my CryptoKitty purchase), I can't add a deposit transaction.