Dear crypto  this yocoin is different u are talking differnt coin,   original yocoin swap is over long back, now that is yocoin (etherium based)  this is xyoc if u have xyoc u dont need to swap.

in coinexchange.io  both coins are trading  if you have old yocoin  then u can sell that coin in coinexchange and transfer the btc to c-cex or livecoin for new yocoins,  that is the only way now.