almost every ico have delay's... it's "normal".
but yeah, no communication is a problem... they should at least explain what happened.
but chill guys, wait a little before you start crying and asking for your money back... it's a big launch and a small team, one day isnt big deal.
I don't think people would mind the delay in the vein of doing a proper release. The issue is the communication. If someone just came out and simply took 1 minute to type an update, that would be fine.