VCR won't eject tape or play & powers off
It sounds as though it's jammed. If you're mechanically inclined you can unplug the unit, take the cover off, and manually eject it. Just look for the motor that drives the load basket and manually spin the shaft. The guide-posts should retract towards the tape and the basket will then lift and eject. Just be aware that whatever bit of tape that's out of the cassette won't spool back in. You will have to do that bu hand once it's out.
When you're done, plug it back in and let it cycle then put an old cheap tape in and see if it works. If not, take it in for repair.