The door interlock will need power to release. Some have a way to manually override (that's provided you can get into the main latch), failing that you might need to unbolt it (can be easier said than done!).

Some photos of the machine would help. Also a close up of that control board on the right. I'm going to guess it's a stepper driven machine, in which case the worst case scenario are a few new drivers, a new controller, and possibly a new VFD (can you get a photo of the label on the side of it?).