You might have noticed that Yuku has been behaving a bit squirrely since Sunday, 
I have contacted Yuku support and this is their reply:-
So, hold on tight, it looks as if we're in for a bumpy ride. 
I have contacted Yuku support and this is their reply:-Hi Lynne, Our boards and accounts have moved to new servers. This happened over the weekend and last night. The email function is currently turned off and being worked on. For more information please check this forum: Announcements
So, hold on tight, it looks as if we're in for a bumpy ride. 