Hello, this is for those who use joiplay to try and run the game, but your screen goes pitch black when you enter the maze. If restarting the game doesn't help then try this.
1. In the menu for joiplay, before you even start the game, hold down the icon for the game.
2. There should be a list of options, Choose to edit the plug-ins, there will be a long list but there's a specific one you want to disable.
3. Scroll down until you find, GALV_VisibilityRange, disable this plugin while you go through the maze.
This was what worked for me, read in a comment further below that the creator of the game, used a fog effect to reduce the area a player can see during this part -which is what lead to me searching for this very plugin to see if something was conflicting.
Hope this helps you!