If you have experienced issues with syncing your trophies and receiving error np-32157-8 then fear not because i am going to tell you how to fix that issue.

Ok so assuming you are having the issue you will need to carry on playing the game and try to get one more trophy.

When you receive the trophy notification hit the PS button on the PS4

Go to notifications and select the trophy notification

This will now sync your trophies.

If you can not get anymore trophies in the game, then you will have to reinitialize your PlayStation 4