Newer builds no longer have these issues. OpenAL comes with itch and itch now extracts the game correctly.
What is openal? I tried deleting it, redownloading, and opening it back up. That didn't work. Then I downloaded the other versions of it, and those didn't work. I tried to get the game to check for a need of repairs and nothing came up. It doesn't even show the main load screen, just the error sign taking up everything.
OpenAL is the Open Audio Library. It's an open source audio library that the open source library I use uses. Which I use SFML which is the Simple, Fast, Multimedia, Library. Does things like inputs, rendering, and sounds. So from what I found is https://openal.org/downloads/oalinst.zip installing this will typically fix that bug. If not you could try installing MSVC++ redist 2015. If you are launching through the itch client you should no longer have issues with either of these things.