Cannot move my BAT out!

I previously sent some BAT from Gemini to he new Brave Wallet, no problem. Now trying to send it back, I cannot confirm the transaction as the buttons is greyed out and it says insufficient funds. Is this because I have to pay a gas fee as I don’t have any ETH in my wallet? I want to get this money out of this wallet ASAP!

Yep. Got to have eth.