it is a non-parachuted launch vehicle powered stark 2 engine
it presently has 1 version,the second version is under-development.
Parker 1
There was a problem in ignition which took a lot of time. After ignition due to high impulse the rocket lost its stability even though the support rods tried to stabilizes it but there was no hold in the bottom part of rocket so, the rocket did multiple 360 degree spins then it flew towards south west and did few pitches on ground. Then in mid-air it exploded before crashing into the ground.
Cause of instability
It was due to low strength of rods, and the impulse was very high then expected. The rods were flexible than expected.