Pretty sure its because you have zero waves.  you need at least .003 waves.   you can get some using a credit card, or convert some bitcoin into waves on https://changelly.com/,  or use Bittrex exchange.

P.S.  Can i edit my username?

Hey All,

New forum member here... been in Bitcoin and Ether for 2 years now, so not too new with Cryptos in general.

Very interested in Waves. Cant wait till USD and Ether tokens are implemented and I have a feeling the DEX will gain a lot of traction.  The simple .003 waves fee will attract many new users IMO.  To be able to trade multiple Fiat/coin tokens on one blockchain excites me.

I have 2 questions:

1. With the waves BTC tokens... Can I send directly from waves platform to a Bitcoin wallet?  What else can I do with these token besides trading on DEX?

2.  If you put a buy or sell order in DEX, how long until it expires if it doesnt get executed?  Any way to cancel?   I tested a buy order with an outrageous exchange rate to see what will happen.

Thanks in advance.