Sony Projectors Kp-7220 Why Does My Sony VPL ESD Projector Have A Flashing Amber Light?

Why does my Sony VPL ESD Projector have a flashing Amber light? - sony projectors kp-7220

It is the lamp / cover section is flashing and turn on custom. Does this mean I need a new battery? Or just the light bulb? They have tried to service customers from Sony, but it is very old, can not help.

Anyone who knows anything about projectors? Is it worth repairing or just buy a new one?