so my save file randomly gone?

[Charles Vane]

usually playing RoE on my gaming laptop, but i've decided to play it on my desktop pc, my save file did not transfer and also i'm not sure but i've lost the save file on my laptop, whenever i launch the game it says '' NEW GAME'' instead of continue on top of the menu then i start a new game and all the levels are listed in mission select menu like i've completed them all earlier but all my cosmetics are locked now even the most basic ones, is there anything i can do other than playing the entire campaign and getting S again jesus