Save/Load Casting Fail UE 4.14.3

Hello, i have a problem about save/load game. my BP is working until my pc crashes. then it started to fail. it has a problem casting to savegame, it fails casting to the saveBlueprint… my version og unreal is 4.14.3. i am so confused because it just didn’t work after that PC crash… I am confident that my BP is correct, but i dont know now how to fix the problem… please help, thanks in advance