Counterwallet transfer fees

I have Coval in a counter wallet and I am trying to transfer funds out.

I am getting the following message: Cannot do this action as you have insufficient BTC at this address. Due to Bitcoin fees, each Counterparty action requires approximately 0.0005 BTC to perform.

Please deposit the necessary BTC into My Address #1 and try again.

My question is, How do I make a deposit into BTC?

Thank you,