Red Hook Studios, the creators of Darkest Dungeon, have warned players against playing the game currently due to a save-corrupting bug. They announced the following on Twitter:
ATTN PSN Owners: Save Corrupting bug found in latest patch 1.08. Don’t load your save for now. Fix already found. New patch in a few days.
As soon as the issue has been resolved we will let you know. Be aware too that the game's "Crimson Court" DLC is still scheduled for release on Playstation 4 and Vita this summer, likely July.
We've got the full list of Darkest Dungeon trophies - check the list for guides to unlocking them.