Any idea how to fix it? The metal around the latch has fractured. Thanks in advance

Door sags because the pins are messed up.

If i make a hard right my driver door flies open 😀

 

You need to cut out and weld a patch into the body pillar. You also need to make sure you have the backing plate behind the skin in place. To be honest, your latch looks to be in serious trouble. Might want to make a trip to a body shop to have it done. Call ahead to hopefully find a shop that has done this before.