Hi arsenkka, that happens when your computer can't handle the GLES3.0 open source drivers the project uses. If you message me at jakefriend.dev@gmail.com or on the Discord server (link above), I can get you a copy of a GLES2.0 export that will work.
(The full game will have a proper configuration file that manages this, but for the time being, it's just a separately exported executable.)