i currently have 210 yocoin at old offline Yocoin Window wallet. I didnt know this method to convert to Etherium before 08/30/2016. Now! how can i change to Etherium?
You're going to need to email support to see if they can help you. There was a specific window of time to send old coins to be swapped and it was heavily announced everywhere. If you missed the opportunity, you will need to email support to see if they can help.