They have a lot of crash issues right now but here is a recent 6.1 check list.
and this:
For those of you who experience crashes when starting the game (before you get to the main menu), we might have a fix: You need to start Empyrion with a batch file that you can download here: https://www.dropbox.com/s/tiijba1wag5swnr/Empyrion_Test.zip?dl=0
- Copy the batch file into the Steam folder where you have installed your game (e.g. D:\Steam\steamapps\common\Empyrion - Galactic Survival) and execute it
- The batch file starts Empyrion in a mode where Workshop data is loaded only when needed, i.e. when you first enter the New Game menu or the Blueprint Library