Ortur Laser Master 2 20W (2021 version) not recognizd or responding to Chromebook running Linux

What does it mean to log out and log back in? Does that mean log out of light burn and log back in? Or does it mean logging out and in to the Linux Terminal? New to Linux. Got the software up and running on my Chromebook. The color on the board are green and pink, but it’s not responding.

Thanks.