I lost the last validation. Now i must wait for 15 days. It looks very interesting project and soon i wii be part of this i hope. I have passed the test i found invitation code but i lost the time. 
In 15 days. Patience
Same things happened to me couple of times. To be honest it's kinda disturbing to be failed perform validation process just for few minutes. Several problem could happen like Node can't be synchronized. Anyway, Is this your first time? Maybe you can press the invitation code, and become proud member of Idena family. Nevertheless, good luck on your next attempt. In 15 days. Patience