Unfortunately the GUI that you use doesn't work anymore. The light wallet is latest (http://light.wownero.com) but it does not support payment ID's.
Your only option is to use the CLI wallet to send your transaction. You don't have to compile wownero yourself, you can download the binary instead: https://github.com/wownero/wownero/releases
Post
Topic
BoardAnnouncements (Altcoins)
Re: 🐕 [ANN] Wownero - Such privacy! Many coins! Wow! 🐕
Re: 🐕 [ANN] Wownero - Such privacy! Many coins! Wow! 🐕
by
GUCCI_MANE
on 30/08/2018, 16:34:51 UTC
Any noteworthy partnerships coming up?
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Topic
BoardAnnouncements (Altcoins)
Re: 🐕 [ANN] Wownero - Such privacy! Many coins! Wow! 🐕
by
GUCCI_MANE
on 20/04/2018, 18:59:22 UTC
wownero is the future. wow.
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Topic
BoardSpeculation (Altcoins)
Re: [XMR] Monero Speculation
by
GUCCI_MANE
on 10/12/2017, 18:11:57 UTC
Have been rigorously lurking this thread since the beginning of October and it has been wonderful seeing Monero grow so exponentially. With all these new features coming up in 2018, the future is looking bright for Monero.