I have the newest version of Minecraft on the PS4 (Rabbits, Armor Stands, ect.) and I deleted all but the newest saves for each world and the most recent overall save. The most recent save is marked "Save Cache" and is from 2/1/2016, and the other three are all the most recent for each world; 2/1/2016, 1/29/2016 and 1/18/2016. They all appear when looking at system data, but if I open minecraft, I'm greeted with an empty continue block with no worlds.
Is there any way to make my worlds show up? Or a way to un-delete the old data?