I haven't used any awards before, so I thought I would try out one of the awards under the Social tab. When I tried using the "Peekaboo" award, it came up with the following message:

"There are no suitable oracles for this puzzle."

Just to make sure that I clicked on the "Peekaboo" award, and NOT the "Oracle" award, I tried again a few more times, but to no avail.

I know that I have enough points (5), as it even says "Your Award Points: 5". Theoretically, this award should work, as my rank isn't in the top 10 for the puzzle I'm attempting (Scorpion Toxin).