The guitar cracked like this. Can it be repaired?

There are no problems that can be fixed. Put on white latex and dip in 2 mm thick plywood, not 3 mm thick. Put a small piece of wood on your head several times. It doesn't need to be too strong. You can do it without knocking it down. The surface is properly pressurized, and it is better to have a clip. It can be left for 48 hours, but it can't be dried for 24 hours. I have failed before. After the repair, gently polish it with 1000 sandpaper, find a little yellow floor and red soil to match the color, and then buy a can of self-spraying polyurethane varnish and spray it three times. I hope I can help you.