Hello, I'm trying to learn this piece and there's something that's unclear to me.

When I first tried playing it, the d flat in the second bar sounded off.. I played an e (natural) and it sounded like how I remembered hearing it. I looked it up on a youtube tutorial and the pianist there plays it with an e.

How come on the sheet music, it has a d flat?

Thank you!

If it helps, here's the sheet music I'm using: http://www.mutopiaproject.org/ftp/BeethovenLv/WoO59/fur_Elise_WoO59/fur_Elise_WoO59-let.pdf

Never mind I figured it out! I forgot that the sharp stays for the whole bar, so the flat would bring it back to a natural.