Flow doesnt work in my Chrome browser.  Any way to correct this?

The lightning experience does not allow in creating a custom object named "Battle Station" with a space.  
The specified name in the trailhead project is "Battle Station" with a space in between.

How do I get the lightning experience to allow space in custom object name?

Greetings:

I have been trying to do check the challenge of the the first part of the "Apex Basics & Database" module. I have been restructuring my apex code but nothing seems to work. This is the error that I'm getting: