Error #815 for camera calibration

Hello! Laser cutting newbie here.

I am currently setting up my Beambox Pro and have reached the camera calibration stage. The machine will cut, then goes back to home, then back again to take the photo and stops there. This is when the error shows (#815 [object CloseEvent]).

I have restarted the machine, taken a photo manually to make sure the camera works (it did), have checked the screen to make sure it wasn’t in maintenance mode and not really sure what else to do now.

As it is a weekend, I cannot get support from Flux so am hoping someone in the forum can help!

Thank you!