Bow explode after a release and broke nock

So this is it after a broke nock at the realese


Nothing happened to me, the bow just fall in parts after this dry shoot, but the most strange thing, it began little louder shooting.
I have check every single bolt/screw, tuning is the same, no change in tiller/brace/alignment.
An accurate looking on the limbs and no cracks or something else, even punching the bow mounted, don't give any strange sound
Now is just more noisy and little more dry.

Any...

Bow explode after a release and broke nock