Picopix Max power off

Found my projector again after not using is for a while. It easily starts up but powers off as soon as the picture is done with autofocus (15 sec after start up).
Light is blue (battery only) or red (powered to original adapter.
It does not heat up
I took the batteries out of the remote, in order to avoid any failure source.

Please help asap. Actually wanted to use it Monday for Halloween