Can't enter contest ? Answered

Hi,

I'm trying to enter in this contest : https://www.instructables.com/contest/epilog6/ with  this instructable https://www.instructables.com/id/Upcycled-cassette-tape-lamp-Lassercutted/
When i click "Enter" it tells me that several projects are eligible, il select the one i want, it says "entered", and whenever i comeback the "entered" isn't click anymore and my project isn't selectionned for the contest.
I've tryied several time since yesterday night without success.

Am i doing it wrong?

Cheers