Can you explain this more fully, please ? Do you mean on the camcorder display, or on the recorded video footage ? Full details of the make, model and settings would greatly assist us as well, together with any information about potential accidental damage. Thank you.
Are you hoping for two different solutions so you can pick and choose ? Either way, it needs professional attention - take or send it to a service centre.
Electronics error since light is not being recognized by camera light sensor. See if there is some sort of reset for the electronics. If nada time to go shopping for another unit.